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1
/*
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 *  Linux syscalls
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 * 
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
6
 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
15
 *
16
 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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#include <stdlib.h>
21
#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <sys/wait.h>
34
#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/prctl.h>
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#include <sys/resource.h>
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#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
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#include <sched.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/times.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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#include <sys/statfs.h>
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#include <utime.h>
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#include <sys/sysinfo.h>
52
//#include <sys/user.h>
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#include <netinet/ip.h>
54
#include <netinet/tcp.h>
55

    
56
#define termios host_termios
57
#define winsize host_winsize
58
#define termio host_termio
59
#define sgttyb host_sgttyb /* same as target */
60
#define tchars host_tchars /* same as target */
61
#define ltchars host_ltchars /* same as target */
62

    
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#include <linux/termios.h>
64
#include <linux/unistd.h>
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#include <linux/utsname.h>
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#include <linux/cdrom.h>
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#include <linux/hdreg.h>
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#include <linux/soundcard.h>
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#include <linux/dirent.h>
70
#include <linux/kd.h>
71

    
72
#include "qemu.h"
73

    
74
//#define DEBUG
75

    
76
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
77
    || defined(TARGET_M68K)
78
/* 16 bit uid wrappers emulation */
79
#define USE_UID16
80
#endif
81

    
82
//#include <linux/msdos_fs.h>
83
#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
84
#define        VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
85

    
86

    
87
#undef _syscall0
88
#undef _syscall1
89
#undef _syscall2
90
#undef _syscall3
91
#undef _syscall4
92
#undef _syscall5
93
#undef _syscall6
94

    
95
#define _syscall0(type,name)                \
96
type name (void)                        \
97
{                                        \
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        return syscall(__NR_##name);        \
99
}
100

    
101
#define _syscall1(type,name,type1,arg1)                \
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type name (type1 arg1)                                \
103
{                                                \
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        return syscall(__NR_##name, arg1);        \
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}
106

    
107
#define _syscall2(type,name,type1,arg1,type2,arg2)        \
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type name (type1 arg1,type2 arg2)                        \
109
{                                                        \
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        return syscall(__NR_##name, arg1, arg2);        \
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}
112

    
113
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
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type name (type1 arg1,type2 arg2,type3 arg3)                        \
115
{                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3);                \
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}
118

    
119
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4)                                \
121
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4);                        \
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}
124

    
125
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
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                  type5,arg5)                                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)                \
128
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5);                \
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}
131

    
132

    
133
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
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                  type5,arg5,type6,arg6)                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6)        \
136
{                                                                                \
137
        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6);        \
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}
139

    
140

    
141
#define __NR_sys_uname __NR_uname
142
#define __NR_sys_getcwd1 __NR_getcwd
143
#define __NR_sys_getdents __NR_getdents
144
#define __NR_sys_getdents64 __NR_getdents64
145
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
146
#define __NR_sys_syslog __NR_syslog
147

    
148
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
149
#define __NR__llseek __NR_lseek
150
#endif
151

    
152
#ifdef __NR_gettid
153
_syscall0(int, gettid)
154
#else
155
static int gettid(void) {
156
    return -ENOSYS;
157
}
158
#endif
159
_syscall1(int,sys_uname,struct new_utsname *,buf)
160
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
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_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
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_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
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_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
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          loff_t *, res, uint, wh);
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_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
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_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
167
#ifdef __NR_exit_group
168
_syscall1(int,exit_group,int,error_code)
169
#endif
170
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
171
_syscall1(int,set_tid_address,int *,tidptr)
172
#endif
173

    
174
extern int personality(int);
175
extern int flock(int, int);
176
extern int setfsuid(int);
177
extern int setfsgid(int);
178
extern int setresuid(uid_t, uid_t, uid_t);
179
extern int getresuid(uid_t *, uid_t *, uid_t *);
180
extern int setresgid(gid_t, gid_t, gid_t);
181
extern int getresgid(gid_t *, gid_t *, gid_t *);
182
extern int setgroups(int, gid_t *);
183

    
184
static inline long get_errno(long ret)
185
{
186
    if (ret == -1)
187
        return -errno;
188
    else
189
        return ret;
190
}
191

    
192
static inline int is_error(long ret)
193
{
194
    return (unsigned long)ret >= (unsigned long)(-4096);
195
}
196

    
197
static target_ulong target_brk;
198
static target_ulong target_original_brk;
199

    
200
void target_set_brk(target_ulong new_brk)
201
{
202
    target_original_brk = target_brk = new_brk;
203
}
204

    
205
long do_brk(target_ulong new_brk)
206
{
207
    target_ulong brk_page;
208
    long mapped_addr;
209
    int        new_alloc_size;
210

    
211
    if (!new_brk)
212
        return target_brk;
213
    if (new_brk < target_original_brk)
214
        return -ENOMEM;
215
    
216
    brk_page = HOST_PAGE_ALIGN(target_brk);
217

    
218
    /* If the new brk is less than this, set it and we're done... */
219
    if (new_brk < brk_page) {
220
        target_brk = new_brk;
221
            return target_brk;
222
    }
223

    
224
    /* We need to allocate more memory after the brk... */
225
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
226
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 
227
                                        PROT_READ|PROT_WRITE,
228
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
229
    if (is_error(mapped_addr)) {
230
        return mapped_addr;
231
    } else {
232
        target_brk = new_brk;
233
            return target_brk;
234
    }
235
}
236

    
237
static inline fd_set *target_to_host_fds(fd_set *fds, 
238
                                         target_long *target_fds, int n)
239
{
240
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
241
    return (fd_set *)target_fds;
242
#else
243
    int i, b;
244
    if (target_fds) {
245
        FD_ZERO(fds);
246
        for(i = 0;i < n; i++) {
247
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
248
                 (i & (TARGET_LONG_BITS - 1))) & 1;
249
            if (b)
250
                FD_SET(i, fds);
251
        }
252
        return fds;
253
    } else {
254
        return NULL;
255
    }
256
#endif
257
}
258

    
259
static inline void host_to_target_fds(target_long *target_fds, 
260
                                      fd_set *fds, int n)
261
{
262
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
263
    /* nothing to do */
264
#else
265
    int i, nw, j, k;
266
    target_long v;
267

    
268
    if (target_fds) {
269
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
270
        k = 0;
271
        for(i = 0;i < nw; i++) {
272
            v = 0;
273
            for(j = 0; j < TARGET_LONG_BITS; j++) {
274
                v |= ((FD_ISSET(k, fds) != 0) << j);
275
                k++;
276
            }
277
            target_fds[i] = tswapl(v);
278
        }
279
    }
280
#endif
281
}
282

    
283
#if defined(__alpha__)
284
#define HOST_HZ 1024
285
#else
286
#define HOST_HZ 100
287
#endif
288

    
289
static inline long host_to_target_clock_t(long ticks)
290
{
291
#if HOST_HZ == TARGET_HZ
292
    return ticks;
293
#else
294
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
295
#endif
296
}
297

    
298
static inline void host_to_target_rusage(target_ulong target_addr,
299
                                         const struct rusage *rusage)
300
{
301
    struct target_rusage *target_rusage;
302

    
303
    lock_user_struct(target_rusage, target_addr, 0);
304
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
305
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
306
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
307
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
308
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
309
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
310
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
311
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
312
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
313
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
314
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
315
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
316
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
317
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
318
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
319
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
320
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
321
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
322
    unlock_user_struct(target_rusage, target_addr, 1);
323
}
324

    
325
static inline void target_to_host_timeval(struct timeval *tv,
326
                                          target_ulong target_addr)
327
{
328
    struct target_timeval *target_tv;
329

    
330
    lock_user_struct(target_tv, target_addr, 1);
331
    tv->tv_sec = tswapl(target_tv->tv_sec);
332
    tv->tv_usec = tswapl(target_tv->tv_usec);
333
    unlock_user_struct(target_tv, target_addr, 0);
334
}
335

    
336
static inline void host_to_target_timeval(target_ulong target_addr,
337
                                          const struct timeval *tv)
338
{
339
    struct target_timeval *target_tv;
340

    
341
    lock_user_struct(target_tv, target_addr, 0);
342
    target_tv->tv_sec = tswapl(tv->tv_sec);
343
    target_tv->tv_usec = tswapl(tv->tv_usec);
344
    unlock_user_struct(target_tv, target_addr, 1);
345
}
346

    
347

    
348
static long do_select(long n, 
349
                      target_ulong rfd_p, target_ulong wfd_p, 
350
                      target_ulong efd_p, target_ulong target_tv)
351
{
352
    fd_set rfds, wfds, efds;
353
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
354
    target_long *target_rfds, *target_wfds, *target_efds;
355
    struct timeval tv, *tv_ptr;
356
    long ret;
357
    int ok;
358

    
359
    if (rfd_p) {
360
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
361
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
362
    } else {
363
        target_rfds = NULL;
364
        rfds_ptr = NULL;
365
    }
366
    if (wfd_p) {
367
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
368
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
369
    } else {
370
        target_wfds = NULL;
371
        wfds_ptr = NULL;
372
    }
373
    if (efd_p) {
374
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
375
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
376
    } else {
377
        target_efds = NULL;
378
        efds_ptr = NULL;
379
    }
380
            
381
    if (target_tv) {
382
        target_to_host_timeval(&tv, target_tv);
383
        tv_ptr = &tv;
384
    } else {
385
        tv_ptr = NULL;
386
    }
387
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
388
    ok = !is_error(ret);
389

    
390
    if (ok) {
391
        host_to_target_fds(target_rfds, rfds_ptr, n);
392
        host_to_target_fds(target_wfds, wfds_ptr, n);
393
        host_to_target_fds(target_efds, efds_ptr, n);
394

    
395
        if (target_tv) {
396
            host_to_target_timeval(target_tv, &tv);
397
        }
398
    }
399
    if (target_rfds)
400
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
401
    if (target_wfds)
402
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
403
    if (target_efds)
404
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
405

    
406
    return ret;
407
}
408

    
409
static inline void target_to_host_sockaddr(struct sockaddr *addr,
410
                                           target_ulong target_addr,
411
                                           socklen_t len)
412
{
413
    struct target_sockaddr *target_saddr;
414

    
415
    target_saddr = lock_user(target_addr, len, 1);
416
    memcpy(addr, target_saddr, len);
417
    addr->sa_family = tswap16(target_saddr->sa_family);
418
    unlock_user(target_saddr, target_addr, 0);
419
}
420

    
421
static inline void host_to_target_sockaddr(target_ulong target_addr,
422
                                           struct sockaddr *addr,
423
                                           socklen_t len)
424
{
425
    struct target_sockaddr *target_saddr;
426

    
427
    target_saddr = lock_user(target_addr, len, 0);
428
    memcpy(target_saddr, addr, len);
429
    target_saddr->sa_family = tswap16(addr->sa_family);
430
    unlock_user(target_saddr, target_addr, len);
431
}
432

    
433
/* ??? Should this also swap msgh->name?  */
434
static inline void target_to_host_cmsg(struct msghdr *msgh,
435
                                       struct target_msghdr *target_msgh)
436
{
437
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
438
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
439
    socklen_t space = 0;
440

    
441
    while (cmsg && target_cmsg) {
442
        void *data = CMSG_DATA(cmsg);
443
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
444

    
445
        int len = tswapl(target_cmsg->cmsg_len) 
446
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
447

    
448
        space += CMSG_SPACE(len);
449
        if (space > msgh->msg_controllen) {
450
            space -= CMSG_SPACE(len);
451
            gemu_log("Host cmsg overflow\n");
452
            break;
453
        }
454

    
455
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
456
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
457
        cmsg->cmsg_len = CMSG_LEN(len);
458

    
459
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
460
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
461
            memcpy(data, target_data, len);
462
        } else {
463
            int *fd = (int *)data;
464
            int *target_fd = (int *)target_data;
465
            int i, numfds = len / sizeof(int);
466

    
467
            for (i = 0; i < numfds; i++)
468
                fd[i] = tswap32(target_fd[i]);
469
        }
470

    
471
        cmsg = CMSG_NXTHDR(msgh, cmsg);
472
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
473
    }
474

    
475
    msgh->msg_controllen = space;
476
}
477

    
478
/* ??? Should this also swap msgh->name?  */
479
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
480
                                       struct msghdr *msgh)
481
{
482
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
483
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
484
    socklen_t space = 0;
485

    
486
    while (cmsg && target_cmsg) {
487
        void *data = CMSG_DATA(cmsg);
488
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
489

    
490
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
491

    
492
        space += TARGET_CMSG_SPACE(len);
493
        if (space > tswapl(target_msgh->msg_controllen)) {
494
            space -= TARGET_CMSG_SPACE(len);
495
            gemu_log("Target cmsg overflow\n");
496
            break;
497
        }
498

    
499
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
500
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
501
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
502

    
503
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
504
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
505
            memcpy(target_data, data, len);
506
        } else {
507
            int *fd = (int *)data;
508
            int *target_fd = (int *)target_data;
509
            int i, numfds = len / sizeof(int);
510

    
511
            for (i = 0; i < numfds; i++)
512
                target_fd[i] = tswap32(fd[i]);
513
        }
514

    
515
        cmsg = CMSG_NXTHDR(msgh, cmsg);
516
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
517
    }
518

    
519
    msgh->msg_controllen = tswapl(space);
520
}
521

    
522
static long do_setsockopt(int sockfd, int level, int optname, 
523
                          target_ulong optval, socklen_t optlen)
524
{
525
    int val, ret;
526
            
527
    switch(level) {
528
    case SOL_TCP:
529
        /* TCP options all take an 'int' value.  */
530
        if (optlen < sizeof(uint32_t))
531
            return -EINVAL;
532
        
533
        val = tget32(optval);
534
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
535
        break;
536
    case SOL_IP:
537
        switch(optname) {
538
        case IP_TOS:
539
        case IP_TTL:
540
        case IP_HDRINCL:
541
        case IP_ROUTER_ALERT:
542
        case IP_RECVOPTS:
543
        case IP_RETOPTS:
544
        case IP_PKTINFO:
545
        case IP_MTU_DISCOVER:
546
        case IP_RECVERR:
547
        case IP_RECVTOS:
548
#ifdef IP_FREEBIND
549
        case IP_FREEBIND:
550
#endif
551
        case IP_MULTICAST_TTL:
552
        case IP_MULTICAST_LOOP:
553
            val = 0;
554
            if (optlen >= sizeof(uint32_t)) {
555
                val = tget32(optval);
556
            } else if (optlen >= 1) {
557
                val = tget8(optval);
558
            }
559
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
560
            break;
561
        default:
562
            goto unimplemented;
563
        }
564
        break;
565
    case TARGET_SOL_SOCKET:
566
        switch (optname) {
567
            /* Options with 'int' argument.  */
568
        case TARGET_SO_DEBUG:
569
                optname = SO_DEBUG;
570
                break;
571
        case TARGET_SO_REUSEADDR:
572
                optname = SO_REUSEADDR;
573
                break;
574
        case TARGET_SO_TYPE:
575
                optname = SO_TYPE;
576
                break;
577
        case TARGET_SO_ERROR:
578
                optname = SO_ERROR;
579
                break;
580
        case TARGET_SO_DONTROUTE:
581
                optname = SO_DONTROUTE;
582
                break;
583
        case TARGET_SO_BROADCAST:
584
                optname = SO_BROADCAST;
585
                break;
586
        case TARGET_SO_SNDBUF:
587
                optname = SO_SNDBUF;
588
                break;
589
        case TARGET_SO_RCVBUF:
590
                optname = SO_RCVBUF;
591
                break;
592
        case TARGET_SO_KEEPALIVE:
593
                optname = SO_KEEPALIVE;
594
                break;
595
        case TARGET_SO_OOBINLINE:
596
                optname = SO_OOBINLINE;
597
                break;
598
        case TARGET_SO_NO_CHECK:
599
                optname = SO_NO_CHECK;
600
                break;
601
        case TARGET_SO_PRIORITY:
602
                optname = SO_PRIORITY;
603
                break;
604
#ifdef SO_BSDCOMPAT
605
        case TARGET_SO_BSDCOMPAT:
606
                optname = SO_BSDCOMPAT;
607
                break;
608
#endif
609
        case TARGET_SO_PASSCRED:
610
                optname = SO_PASSCRED;
611
                break;
612
        case TARGET_SO_TIMESTAMP:
613
                optname = SO_TIMESTAMP;
614
                break;
615
        case TARGET_SO_RCVLOWAT:
616
                optname = SO_RCVLOWAT;
617
                break;
618
        case TARGET_SO_RCVTIMEO:
619
                optname = SO_RCVTIMEO;
620
                break;
621
        case TARGET_SO_SNDTIMEO:
622
                optname = SO_SNDTIMEO;
623
                break;
624
            break;
625
        default:
626
            goto unimplemented;
627
        }
628
        if (optlen < sizeof(uint32_t))
629
        return -EINVAL;
630

    
631
        val = tget32(optval);
632
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
633
        break;
634
    default:
635
    unimplemented:
636
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
637
        ret = -ENOSYS;
638
    }
639
    return ret;
640
}
641

    
642
static long do_getsockopt(int sockfd, int level, int optname, 
643
                          target_ulong optval, target_ulong optlen)
644
{
645
    int len, lv, val, ret;
646

    
647
    switch(level) {
648
    case TARGET_SOL_SOCKET:
649
            level = SOL_SOCKET;
650
        switch (optname) {
651
        case TARGET_SO_LINGER:
652
        case TARGET_SO_RCVTIMEO:
653
        case TARGET_SO_SNDTIMEO:
654
        case TARGET_SO_PEERCRED:
655
        case TARGET_SO_PEERNAME:
656
            /* These don't just return a single integer */
657
            goto unimplemented;
658
        default:
659
            goto int_case;
660
        }
661
        break;
662
    case SOL_TCP:
663
        /* TCP options all take an 'int' value.  */
664
    int_case:
665
        len = tget32(optlen);
666
        if (len < 0)
667
            return -EINVAL;
668
        lv = sizeof(int);
669
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
670
        if (ret < 0)
671
            return ret;
672
        val = tswap32(val);
673
        if (len > lv)
674
            len = lv;
675
        if (len == 4)
676
            tput32(optval, val);
677
        else
678
            tput8(optval, val);
679
        tput32(optlen, len);
680
        break;
681
    case SOL_IP:
682
        switch(optname) {
683
        case IP_TOS:
684
        case IP_TTL:
685
        case IP_HDRINCL:
686
        case IP_ROUTER_ALERT:
687
        case IP_RECVOPTS:
688
        case IP_RETOPTS:
689
        case IP_PKTINFO:
690
        case IP_MTU_DISCOVER:
691
        case IP_RECVERR:
692
        case IP_RECVTOS:
693
#ifdef IP_FREEBIND
694
        case IP_FREEBIND:
695
#endif
696
        case IP_MULTICAST_TTL:
697
        case IP_MULTICAST_LOOP:
698
            len = tget32(optlen);
699
            if (len < 0)
700
                return -EINVAL;
701
            lv = sizeof(int);
702
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
703
            if (ret < 0)
704
                return ret;
705
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
706
                len = 1;
707
                tput32(optlen, len);
708
                tput8(optval, val);
709
            } else {
710
                if (len > sizeof(int))
711
                    len = sizeof(int);
712
                tput32(optlen, len);
713
                tput32(optval, val);
714
            }
715
            break;
716
        default:
717
            goto unimplemented;
718
        }
719
        break;
720
    default:
721
    unimplemented:
722
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
723
                 level, optname);
724
        ret = -ENOSYS;
725
        break;
726
    }
727
    return ret;
728
}
729

    
730
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
731
                       int count, int copy)
732
{
733
    struct target_iovec *target_vec;
734
    target_ulong base;
735
    int i;
736

    
737
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
738
    for(i = 0;i < count; i++) {
739
        base = tswapl(target_vec[i].iov_base);
740
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
741
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
742
    }
743
    unlock_user (target_vec, target_addr, 0);
744
}
745

    
746
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
747
                         int count, int copy)
748
{
749
    struct target_iovec *target_vec;
750
    target_ulong base;
751
    int i;
752

    
753
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
754
    for(i = 0;i < count; i++) {
755
        base = tswapl(target_vec[i].iov_base);
756
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
757
    }
758
    unlock_user (target_vec, target_addr, 0);
759
}
760

    
761
static long do_socket(int domain, int type, int protocol)
762
{
763
#if defined(TARGET_MIPS)
764
    switch(type) {
765
    case TARGET_SOCK_DGRAM:
766
        type = SOCK_DGRAM;
767
        break;
768
    case TARGET_SOCK_STREAM:
769
        type = SOCK_STREAM;
770
        break;
771
    case TARGET_SOCK_RAW:
772
        type = SOCK_RAW;
773
        break;
774
    case TARGET_SOCK_RDM:
775
        type = SOCK_RDM;
776
        break;
777
    case TARGET_SOCK_SEQPACKET:
778
        type = SOCK_SEQPACKET;
779
        break;
780
    case TARGET_SOCK_PACKET:
781
        type = SOCK_PACKET;
782
        break;
783
    }
784
#endif
785
    return get_errno(socket(domain, type, protocol));
786
}
787

    
788
static long do_bind(int sockfd, target_ulong target_addr,
789
                    socklen_t addrlen)
790
{
791
    void *addr = alloca(addrlen);
792
    
793
    target_to_host_sockaddr(addr, target_addr, addrlen);
794
    return get_errno(bind(sockfd, addr, addrlen));
795
}
796

    
797
static long do_connect(int sockfd, target_ulong target_addr,
798
                    socklen_t addrlen)
799
{
800
    void *addr = alloca(addrlen);
801
    
802
    target_to_host_sockaddr(addr, target_addr, addrlen);
803
    return get_errno(connect(sockfd, addr, addrlen));
804
}
805

    
806
static long do_sendrecvmsg(int fd, target_ulong target_msg,
807
                           int flags, int send)
808
{
809
    long ret;
810
    struct target_msghdr *msgp;
811
    struct msghdr msg;
812
    int count;
813
    struct iovec *vec;
814
    target_ulong target_vec;
815

    
816
    lock_user_struct(msgp, target_msg, 1);
817
    if (msgp->msg_name) {
818
        msg.msg_namelen = tswap32(msgp->msg_namelen);
819
        msg.msg_name = alloca(msg.msg_namelen);
820
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
821
                                msg.msg_namelen);
822
    } else {
823
        msg.msg_name = NULL;
824
        msg.msg_namelen = 0;
825
    }
826
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
827
    msg.msg_control = alloca(msg.msg_controllen);
828
    msg.msg_flags = tswap32(msgp->msg_flags);
829
    
830
    count = tswapl(msgp->msg_iovlen);
831
    vec = alloca(count * sizeof(struct iovec));
832
    target_vec = tswapl(msgp->msg_iov);
833
    lock_iovec(vec, target_vec, count, send);
834
    msg.msg_iovlen = count;
835
    msg.msg_iov = vec;
836
    
837
    if (send) {
838
        target_to_host_cmsg(&msg, msgp);
839
        ret = get_errno(sendmsg(fd, &msg, flags));
840
    } else {
841
        ret = get_errno(recvmsg(fd, &msg, flags));
842
        if (!is_error(ret))
843
            host_to_target_cmsg(msgp, &msg);
844
    }
845
    unlock_iovec(vec, target_vec, count, !send);
846
    return ret;
847
}
848

    
849
static long do_accept(int fd, target_ulong target_addr,
850
                      target_ulong target_addrlen)
851
{
852
    socklen_t addrlen = tget32(target_addrlen);
853
    void *addr = alloca(addrlen);
854
    long ret;
855

    
856
    ret = get_errno(accept(fd, addr, &addrlen));
857
    if (!is_error(ret)) {
858
        host_to_target_sockaddr(target_addr, addr, addrlen);
859
        tput32(target_addrlen, addrlen);
860
    }
861
    return ret;
862
}
863

    
864
static long do_getpeername(int fd, target_ulong target_addr,
865
                           target_ulong target_addrlen)
866
{
867
    socklen_t addrlen = tget32(target_addrlen);
868
    void *addr = alloca(addrlen);
869
    long ret;
870

    
871
    ret = get_errno(getpeername(fd, addr, &addrlen));
872
    if (!is_error(ret)) {
873
        host_to_target_sockaddr(target_addr, addr, addrlen);
874
        tput32(target_addrlen, addrlen);
875
    }
876
    return ret;
877
}
878

    
879
static long do_getsockname(int fd, target_ulong target_addr,
880
                           target_ulong target_addrlen)
881
{
882
    socklen_t addrlen = tget32(target_addrlen);
883
    void *addr = alloca(addrlen);
884
    long ret;
885

    
886
    ret = get_errno(getsockname(fd, addr, &addrlen));
887
    if (!is_error(ret)) {
888
        host_to_target_sockaddr(target_addr, addr, addrlen);
889
        tput32(target_addrlen, addrlen);
890
    }
891
    return ret;
892
}
893

    
894
static long do_socketpair(int domain, int type, int protocol,
895
                          target_ulong target_tab)
896
{
897
    int tab[2];
898
    long ret;
899

    
900
    ret = get_errno(socketpair(domain, type, protocol, tab));
901
    if (!is_error(ret)) {
902
        tput32(target_tab, tab[0]);
903
        tput32(target_tab + 4, tab[1]);
904
    }
905
    return ret;
906
}
907

    
908
static long do_sendto(int fd, target_ulong msg, size_t len, int flags,
909
                      target_ulong target_addr, socklen_t addrlen)
910
{
911
    void *addr;
912
    void *host_msg;
913
    long ret;
914

    
915
    host_msg = lock_user(msg, len, 1);
916
    if (target_addr) {
917
        addr = alloca(addrlen);
918
        target_to_host_sockaddr(addr, target_addr, addrlen);
919
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
920
    } else {
921
        ret = get_errno(send(fd, host_msg, len, flags));
922
    }
923
    unlock_user(host_msg, msg, 0);
924
    return ret;
925
}
926

    
927
static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
928
                        target_ulong target_addr, target_ulong target_addrlen)
929
{
930
    socklen_t addrlen;
931
    void *addr;
932
    void *host_msg;
933
    long ret;
934

    
935
    host_msg = lock_user(msg, len, 0);
936
    if (target_addr) {
937
        addrlen = tget32(target_addrlen);
938
        addr = alloca(addrlen);
939
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
940
    } else {
941
        addr = NULL; /* To keep compiler quiet.  */
942
        ret = get_errno(recv(fd, host_msg, len, flags));
943
    }
944
    if (!is_error(ret)) {
945
        if (target_addr) {
946
            host_to_target_sockaddr(target_addr, addr, addrlen);
947
            tput32(target_addrlen, addrlen);
948
        }
949
        unlock_user(host_msg, msg, len);
950
    } else {
951
        unlock_user(host_msg, msg, 0);
952
    }
953
    return ret;
954
}
955

    
956
static long do_socketcall(int num, target_ulong vptr)
957
{
958
    long ret;
959
    const int n = sizeof(target_ulong);
960

    
961
    switch(num) {
962
    case SOCKOP_socket:
963
        {
964
            int domain = tgetl(vptr);
965
            int type = tgetl(vptr + n);
966
            int protocol = tgetl(vptr + 2 * n);
967
            ret = do_socket(domain, type, protocol);
968
        }
969
        break;
970
    case SOCKOP_bind:
971
        {
972
            int sockfd = tgetl(vptr);
973
            target_ulong target_addr = tgetl(vptr + n);
974
            socklen_t addrlen = tgetl(vptr + 2 * n);
975
            ret = do_bind(sockfd, target_addr, addrlen);
976
        }
977
        break;
978
    case SOCKOP_connect:
979
        {
980
            int sockfd = tgetl(vptr);
981
            target_ulong target_addr = tgetl(vptr + n);
982
            socklen_t addrlen = tgetl(vptr + 2 * n);
983
            ret = do_connect(sockfd, target_addr, addrlen);
984
        }
985
        break;
986
    case SOCKOP_listen:
987
        {
988
            int sockfd = tgetl(vptr);
989
            int backlog = tgetl(vptr + n);
990
            ret = get_errno(listen(sockfd, backlog));
991
        }
992
        break;
993
    case SOCKOP_accept:
994
        {
995
            int sockfd = tgetl(vptr);
996
            target_ulong target_addr = tgetl(vptr + n);
997
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
998
            ret = do_accept(sockfd, target_addr, target_addrlen);
999
        }
1000
        break;
1001
    case SOCKOP_getsockname:
1002
        {
1003
            int sockfd = tgetl(vptr);
1004
            target_ulong target_addr = tgetl(vptr + n);
1005
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1006
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
1007
        }
1008
        break;
1009
    case SOCKOP_getpeername:
1010
        {
1011
            int sockfd = tgetl(vptr);
1012
            target_ulong target_addr = tgetl(vptr + n);
1013
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1014
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1015
        }
1016
        break;
1017
    case SOCKOP_socketpair:
1018
        {
1019
            int domain = tgetl(vptr);
1020
            int type = tgetl(vptr + n);
1021
            int protocol = tgetl(vptr + 2 * n);
1022
            target_ulong tab = tgetl(vptr + 3 * n);
1023
            ret = do_socketpair(domain, type, protocol, tab);
1024
        }
1025
        break;
1026
    case SOCKOP_send:
1027
        {
1028
            int sockfd = tgetl(vptr);
1029
            target_ulong msg = tgetl(vptr + n);
1030
            size_t len = tgetl(vptr + 2 * n);
1031
            int flags = tgetl(vptr + 3 * n);
1032
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1033
        }
1034
        break;
1035
    case SOCKOP_recv:
1036
        {
1037
            int sockfd = tgetl(vptr);
1038
            target_ulong msg = tgetl(vptr + n);
1039
            size_t len = tgetl(vptr + 2 * n);
1040
            int flags = tgetl(vptr + 3 * n);
1041
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1042
        }
1043
        break;
1044
    case SOCKOP_sendto:
1045
        {
1046
            int sockfd = tgetl(vptr);
1047
            target_ulong msg = tgetl(vptr + n);
1048
            size_t len = tgetl(vptr + 2 * n);
1049
            int flags = tgetl(vptr + 3 * n);
1050
            target_ulong addr = tgetl(vptr + 4 * n);
1051
            socklen_t addrlen = tgetl(vptr + 5 * n);
1052
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1053
        }
1054
        break;
1055
    case SOCKOP_recvfrom:
1056
        {
1057
            int sockfd = tgetl(vptr);
1058
            target_ulong msg = tgetl(vptr + n);
1059
            size_t len = tgetl(vptr + 2 * n);
1060
            int flags = tgetl(vptr + 3 * n);
1061
            target_ulong addr = tgetl(vptr + 4 * n);
1062
            target_ulong addrlen = tgetl(vptr + 5 * n);
1063
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1064
        }
1065
        break;
1066
    case SOCKOP_shutdown:
1067
        {
1068
            int sockfd = tgetl(vptr);
1069
            int how = tgetl(vptr + n);
1070

    
1071
            ret = get_errno(shutdown(sockfd, how));
1072
        }
1073
        break;
1074
    case SOCKOP_sendmsg:
1075
    case SOCKOP_recvmsg:
1076
        {
1077
            int fd;
1078
            target_ulong target_msg;
1079
            int flags;
1080

    
1081
            fd = tgetl(vptr);
1082
            target_msg = tgetl(vptr + n);
1083
            flags = tgetl(vptr + 2 * n);
1084

    
1085
            ret = do_sendrecvmsg(fd, target_msg, flags, 
1086
                                 (num == SOCKOP_sendmsg));
1087
        }
1088
        break;
1089
    case SOCKOP_setsockopt:
1090
        {
1091
            int sockfd = tgetl(vptr);
1092
            int level = tgetl(vptr + n);
1093
            int optname = tgetl(vptr + 2 * n);
1094
            target_ulong optval = tgetl(vptr + 3 * n);
1095
            socklen_t optlen = tgetl(vptr + 4 * n);
1096

    
1097
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1098
        }
1099
        break;
1100
    case SOCKOP_getsockopt:
1101
        {
1102
            int sockfd = tgetl(vptr);
1103
            int level = tgetl(vptr + n);
1104
            int optname = tgetl(vptr + 2 * n);
1105
            target_ulong optval = tgetl(vptr + 3 * n);
1106
            target_ulong poptlen = tgetl(vptr + 4 * n);
1107

    
1108
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1109
        }
1110
        break;
1111
    default:
1112
        gemu_log("Unsupported socketcall: %d\n", num);
1113
        ret = -ENOSYS;
1114
        break;
1115
    }
1116
    return ret;
1117
}
1118

    
1119
#define N_SHM_REGIONS        32
1120

    
1121
static struct shm_region {
1122
    uint32_t        start;
1123
    uint32_t        size;
1124
} shm_regions[N_SHM_REGIONS];
1125

    
1126
union semun {
1127
        int val;
1128
        struct senid_ds *buf;
1129
        unsigned short *array;
1130
};
1131

    
1132
/* ??? This only works with linear mappings.  */
1133
static long do_ipc(long call, long first, long second, long third,
1134
                   long ptr, long fifth)
1135
{
1136
    int version;
1137
    long ret = 0;
1138
    unsigned long raddr;
1139
    struct shmid_ds shm_info;
1140
    int i;
1141

    
1142
    version = call >> 16;
1143
    call &= 0xffff;
1144

    
1145
    switch (call) {
1146
    case IPCOP_semop:
1147
        ret = get_errno(semop(first,(struct sembuf *) ptr, second));
1148
        break;
1149

    
1150
    case IPCOP_semget:
1151
        ret = get_errno(semget(first, second, third));
1152
        break;
1153

    
1154
    case IPCOP_semctl:
1155
        ret = get_errno(semctl(first, second, third, ((union semun*)ptr)->val));
1156

    
1157
        break;
1158

    
1159
    case IPCOP_semtimedop:
1160
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1161
        ret = -ENOSYS;
1162
        break;
1163

    
1164
        case IPCOP_msgget:
1165
                ret = get_errno(msgget(first, second));
1166
                break;
1167

    
1168
        case IPCOP_msgsnd:
1169
                ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third));
1170
                break;
1171

    
1172
        case IPCOP_msgctl:
1173
                ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr));
1174
                break;
1175

    
1176
        case IPCOP_msgrcv:
1177
                {
1178
                        struct ipc_kludge
1179
                        {
1180
                                void *__unbounded msgp;
1181
                                long int msgtyp;
1182
                        };
1183

    
1184
                        struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
1185
                        struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1186

    
1187
                        ret = get_errno(msgrcv(first, msgp, second, 0, third));
1188

    
1189
                }
1190
                break;
1191

    
1192
    case IPCOP_shmat:
1193
        /* SHM_* flags are the same on all linux platforms */
1194
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1195
        if (is_error(ret))
1196
            break;
1197
        raddr = ret;
1198
        /* find out the length of the shared memory segment */
1199
        
1200
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1201
        if (is_error(ret)) {
1202
            /* can't get length, bail out */
1203
            shmdt((void *) raddr);
1204
            break;
1205
        }
1206
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1207
                       PAGE_VALID | PAGE_READ |
1208
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1209
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1210
            if (shm_regions[i].start == 0) {
1211
                shm_regions[i].start = raddr;
1212
                shm_regions[i].size = shm_info.shm_segsz;
1213
                break;
1214
            }
1215
        }
1216
        if (put_user(raddr, (uint32_t *)third))
1217
            return -EFAULT;
1218
        ret = 0;
1219
        break;
1220
    case IPCOP_shmdt:
1221
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1222
            if (shm_regions[i].start == ptr) {
1223
                shm_regions[i].start = 0;
1224
                page_set_flags(ptr, shm_regions[i].size, 0);
1225
                break;
1226
            }
1227
        }
1228
        ret = get_errno(shmdt((void *) ptr));
1229
        break;
1230

    
1231
    case IPCOP_shmget:
1232
        /* IPC_* flag values are the same on all linux platforms */
1233
        ret = get_errno(shmget(first, second, third));
1234
        break;
1235

    
1236
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1237
    case IPCOP_shmctl:
1238
        switch(second) {
1239
        case IPC_RMID:
1240
        case SHM_LOCK:
1241
        case SHM_UNLOCK:
1242
            ret = get_errno(shmctl(first, second, NULL));
1243
            break;
1244
        default:
1245
            goto unimplemented;
1246
        }
1247
        break;
1248
    default:
1249
    unimplemented:
1250
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1251
        ret = -ENOSYS;
1252
        break;
1253
    }
1254
    return ret;
1255
}
1256

    
1257
/* kernel structure types definitions */
1258
#define IFNAMSIZ        16
1259

    
1260
#define STRUCT(name, list...) STRUCT_ ## name,
1261
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1262
enum {
1263
#include "syscall_types.h"
1264
};
1265
#undef STRUCT
1266
#undef STRUCT_SPECIAL
1267

    
1268
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1269
#define STRUCT_SPECIAL(name)
1270
#include "syscall_types.h"
1271
#undef STRUCT
1272
#undef STRUCT_SPECIAL
1273

    
1274
typedef struct IOCTLEntry {
1275
    unsigned int target_cmd;
1276
    unsigned int host_cmd;
1277
    const char *name;
1278
    int access;
1279
    const argtype arg_type[5];
1280
} IOCTLEntry;
1281

    
1282
#define IOC_R 0x0001
1283
#define IOC_W 0x0002
1284
#define IOC_RW (IOC_R | IOC_W)
1285

    
1286
#define MAX_STRUCT_SIZE 4096
1287

    
1288
IOCTLEntry ioctl_entries[] = {
1289
#define IOCTL(cmd, access, types...) \
1290
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1291
#include "ioctls.h"
1292
    { 0, 0, },
1293
};
1294

    
1295
/* ??? Implement proper locking for ioctls.  */
1296
static long do_ioctl(long fd, long cmd, long arg)
1297
{
1298
    const IOCTLEntry *ie;
1299
    const argtype *arg_type;
1300
    long ret;
1301
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1302
    int target_size;
1303
    void *argptr;
1304

    
1305
    ie = ioctl_entries;
1306
    for(;;) {
1307
        if (ie->target_cmd == 0) {
1308
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1309
            return -ENOSYS;
1310
        }
1311
        if (ie->target_cmd == cmd)
1312
            break;
1313
        ie++;
1314
    }
1315
    arg_type = ie->arg_type;
1316
#if defined(DEBUG)
1317
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1318
#endif
1319
    switch(arg_type[0]) {
1320
    case TYPE_NULL:
1321
        /* no argument */
1322
        ret = get_errno(ioctl(fd, ie->host_cmd));
1323
        break;
1324
    case TYPE_PTRVOID:
1325
    case TYPE_INT:
1326
        /* int argment */
1327
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1328
        break;
1329
    case TYPE_PTR:
1330
        arg_type++;
1331
        target_size = thunk_type_size(arg_type, 0);
1332
        switch(ie->access) {
1333
        case IOC_R:
1334
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1335
            if (!is_error(ret)) {
1336
                argptr = lock_user(arg, target_size, 0);
1337
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1338
                unlock_user(argptr, arg, target_size);
1339
            }
1340
            break;
1341
        case IOC_W:
1342
            argptr = lock_user(arg, target_size, 1);
1343
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1344
            unlock_user(argptr, arg, 0);
1345
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1346
            break;
1347
        default:
1348
        case IOC_RW:
1349
            argptr = lock_user(arg, target_size, 1);
1350
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1351
            unlock_user(argptr, arg, 0);
1352
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1353
            if (!is_error(ret)) {
1354
                argptr = lock_user(arg, target_size, 0);
1355
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1356
                unlock_user(argptr, arg, target_size);
1357
            }
1358
            break;
1359
        }
1360
        break;
1361
    default:
1362
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1363
        ret = -ENOSYS;
1364
        break;
1365
    }
1366
    return ret;
1367
}
1368

    
1369
bitmask_transtbl iflag_tbl[] = {
1370
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1371
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1372
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1373
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1374
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1375
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1376
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1377
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1378
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1379
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1380
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1381
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1382
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1383
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1384
        { 0, 0, 0, 0 }
1385
};
1386

    
1387
bitmask_transtbl oflag_tbl[] = {
1388
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1389
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1390
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1391
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1392
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1393
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1394
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1395
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1396
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1397
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1398
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1399
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1400
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1401
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1402
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1403
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1404
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1405
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1406
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1407
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1408
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1409
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1410
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1411
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1412
        { 0, 0, 0, 0 }
1413
};
1414

    
1415
bitmask_transtbl cflag_tbl[] = {
1416
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1417
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1418
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1419
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1420
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1421
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1422
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1423
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1424
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1425
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1426
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1427
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1428
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1429
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1430
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1431
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1432
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1433
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1434
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1435
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1436
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1437
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1438
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1439
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1440
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1441
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1442
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1443
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1444
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1445
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1446
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1447
        { 0, 0, 0, 0 }
1448
};
1449

    
1450
bitmask_transtbl lflag_tbl[] = {
1451
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1452
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1453
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1454
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1455
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1456
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1457
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1458
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1459
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1460
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1461
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1462
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1463
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1464
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1465
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1466
        { 0, 0, 0, 0 }
1467
};
1468

    
1469
static void target_to_host_termios (void *dst, const void *src)
1470
{
1471
    struct host_termios *host = dst;
1472
    const struct target_termios *target = src;
1473
    
1474
    host->c_iflag = 
1475
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1476
    host->c_oflag = 
1477
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1478
    host->c_cflag = 
1479
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1480
    host->c_lflag = 
1481
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1482
    host->c_line = target->c_line;
1483
    
1484
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
1485
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
1486
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
1487
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
1488
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
1489
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
1490
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
1491
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
1492
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
1493
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
1494
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
1495
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
1496
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
1497
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
1498
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
1499
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
1500
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
1501
}
1502
  
1503
static void host_to_target_termios (void *dst, const void *src)
1504
{
1505
    struct target_termios *target = dst;
1506
    const struct host_termios *host = src;
1507

    
1508
    target->c_iflag = 
1509
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1510
    target->c_oflag = 
1511
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1512
    target->c_cflag = 
1513
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1514
    target->c_lflag = 
1515
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1516
    target->c_line = host->c_line;
1517
  
1518
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1519
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1520
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1521
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1522
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1523
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1524
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1525
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1526
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1527
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1528
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1529
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1530
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1531
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1532
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1533
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1534
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1535
}
1536

    
1537
StructEntry struct_termios_def = {
1538
    .convert = { host_to_target_termios, target_to_host_termios },
1539
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1540
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1541
};
1542

    
1543
static bitmask_transtbl mmap_flags_tbl[] = {
1544
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1545
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1546
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1547
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1548
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1549
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1550
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1551
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1552
        { 0, 0, 0, 0 }
1553
};
1554

    
1555
static bitmask_transtbl fcntl_flags_tbl[] = {
1556
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1557
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1558
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1559
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1560
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1561
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1562
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1563
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1564
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1565
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1566
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1567
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1568
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1569
#if defined(O_DIRECT)
1570
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1571
#endif
1572
        { 0, 0, 0, 0 }
1573
};
1574

    
1575
#if defined(TARGET_I386)
1576

    
1577
/* NOTE: there is really one LDT for all the threads */
1578
uint8_t *ldt_table;
1579

    
1580
static int read_ldt(target_ulong ptr, unsigned long bytecount)
1581
{
1582
    int size;
1583
    void *p;
1584

    
1585
    if (!ldt_table)
1586
        return 0;
1587
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1588
    if (size > bytecount)
1589
        size = bytecount;
1590
    p = lock_user(ptr, size, 0);
1591
    /* ??? Shoudl this by byteswapped?  */
1592
    memcpy(p, ldt_table, size);
1593
    unlock_user(p, ptr, size);
1594
    return size;
1595
}
1596

    
1597
/* XXX: add locking support */
1598
static int write_ldt(CPUX86State *env, 
1599
                     target_ulong ptr, unsigned long bytecount, int oldmode)
1600
{
1601
    struct target_modify_ldt_ldt_s ldt_info;
1602
    struct target_modify_ldt_ldt_s *target_ldt_info;
1603
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1604
    int seg_not_present, useable;
1605
    uint32_t *lp, entry_1, entry_2;
1606

    
1607
    if (bytecount != sizeof(ldt_info))
1608
        return -EINVAL;
1609
    lock_user_struct(target_ldt_info, ptr, 1);
1610
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1611
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1612
    ldt_info.limit = tswap32(target_ldt_info->limit);
1613
    ldt_info.flags = tswap32(target_ldt_info->flags);
1614
    unlock_user_struct(target_ldt_info, ptr, 0);
1615
    
1616
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1617
        return -EINVAL;
1618
    seg_32bit = ldt_info.flags & 1;
1619
    contents = (ldt_info.flags >> 1) & 3;
1620
    read_exec_only = (ldt_info.flags >> 3) & 1;
1621
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1622
    seg_not_present = (ldt_info.flags >> 5) & 1;
1623
    useable = (ldt_info.flags >> 6) & 1;
1624

    
1625
    if (contents == 3) {
1626
        if (oldmode)
1627
            return -EINVAL;
1628
        if (seg_not_present == 0)
1629
            return -EINVAL;
1630
    }
1631
    /* allocate the LDT */
1632
    if (!ldt_table) {
1633
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1634
        if (!ldt_table)
1635
            return -ENOMEM;
1636
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1637
        env->ldt.base = h2g(ldt_table);
1638
        env->ldt.limit = 0xffff;
1639
    }
1640

    
1641
    /* NOTE: same code as Linux kernel */
1642
    /* Allow LDTs to be cleared by the user. */
1643
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1644
        if (oldmode ||
1645
            (contents == 0                &&
1646
             read_exec_only == 1        &&
1647
             seg_32bit == 0                &&
1648
             limit_in_pages == 0        &&
1649
             seg_not_present == 1        &&
1650
             useable == 0 )) {
1651
            entry_1 = 0;
1652
            entry_2 = 0;
1653
            goto install;
1654
        }
1655
    }
1656
    
1657
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1658
        (ldt_info.limit & 0x0ffff);
1659
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1660
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1661
        (ldt_info.limit & 0xf0000) |
1662
        ((read_exec_only ^ 1) << 9) |
1663
        (contents << 10) |
1664
        ((seg_not_present ^ 1) << 15) |
1665
        (seg_32bit << 22) |
1666
        (limit_in_pages << 23) |
1667
        0x7000;
1668
    if (!oldmode)
1669
        entry_2 |= (useable << 20);
1670

    
1671
    /* Install the new entry ...  */
1672
install:
1673
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1674
    lp[0] = tswap32(entry_1);
1675
    lp[1] = tswap32(entry_2);
1676
    return 0;
1677
}
1678

    
1679
/* specific and weird i386 syscalls */
1680
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1681
{
1682
    int ret = -ENOSYS;
1683
    
1684
    switch (func) {
1685
    case 0:
1686
        ret = read_ldt(ptr, bytecount);
1687
        break;
1688
    case 1:
1689
        ret = write_ldt(env, ptr, bytecount, 1);
1690
        break;
1691
    case 0x11:
1692
        ret = write_ldt(env, ptr, bytecount, 0);
1693
        break;
1694
    }
1695
    return ret;
1696
}
1697

    
1698
#endif /* defined(TARGET_I386) */
1699

    
1700
/* this stack is the equivalent of the kernel stack associated with a
1701
   thread/process */
1702
#define NEW_STACK_SIZE 8192
1703

    
1704
static int clone_func(void *arg)
1705
{
1706
    CPUState *env = arg;
1707
    cpu_loop(env);
1708
    /* never exits */
1709
    return 0;
1710
}
1711

    
1712
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1713
{
1714
    int ret;
1715
    TaskState *ts;
1716
    uint8_t *new_stack;
1717
    CPUState *new_env;
1718
    
1719
    if (flags & CLONE_VM) {
1720
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1721
        memset(ts, 0, sizeof(TaskState));
1722
        new_stack = ts->stack;
1723
        ts->used = 1;
1724
        /* add in task state list */
1725
        ts->next = first_task_state;
1726
        first_task_state = ts;
1727
        /* we create a new CPU instance. */
1728
        new_env = cpu_copy(env);
1729
#if defined(TARGET_I386)
1730
        if (!newsp)
1731
            newsp = env->regs[R_ESP];
1732
        new_env->regs[R_ESP] = newsp;
1733
        new_env->regs[R_EAX] = 0;
1734
#elif defined(TARGET_ARM)
1735
        if (!newsp)
1736
            newsp = env->regs[13];
1737
        new_env->regs[13] = newsp;
1738
        new_env->regs[0] = 0;
1739
#elif defined(TARGET_SPARC)
1740
        if (!newsp)
1741
            newsp = env->regwptr[22];
1742
        new_env->regwptr[22] = newsp;
1743
        new_env->regwptr[0] = 0;
1744
        /* XXXXX */
1745
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1746
#elif defined(TARGET_M68K)
1747
        if (!newsp)
1748
            newsp = env->aregs[7];
1749
        new_env->aregs[7] = newsp;
1750
        new_env->dregs[0] = 0;
1751
        /* ??? is this sufficient?  */
1752
#elif defined(TARGET_MIPS)
1753
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1754
#elif defined(TARGET_PPC)
1755
        if (!newsp)
1756
            newsp = env->gpr[1];
1757
        new_env->gpr[1] = newsp;
1758
        { 
1759
            int i;
1760
            for (i = 7; i < 32; i++)
1761
                new_env->gpr[i] = 0;
1762
        }
1763
#elif defined(TARGET_SH4)
1764
        if (!newsp)
1765
          newsp = env->gregs[15];
1766
        new_env->gregs[15] = newsp;
1767
        /* XXXXX */
1768
#else
1769
#error unsupported target CPU
1770
#endif
1771
        new_env->opaque = ts;
1772
#ifdef __ia64__
1773
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1774
#else
1775
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1776
#endif
1777
    } else {
1778
        /* if no CLONE_VM, we consider it is a fork */
1779
        if ((flags & ~CSIGNAL) != 0)
1780
            return -EINVAL;
1781
        ret = fork();
1782
    }
1783
    return ret;
1784
}
1785

    
1786
static long do_fcntl(int fd, int cmd, target_ulong arg)
1787
{
1788
    struct flock fl;
1789
    struct target_flock *target_fl;
1790
    struct flock64 fl64;
1791
    struct target_flock64 *target_fl64;
1792
    long ret;
1793

    
1794
    switch(cmd) {
1795
    case TARGET_F_GETLK:
1796
        lock_user_struct(target_fl, arg, 1);
1797
        fl.l_type = tswap16(target_fl->l_type);
1798
        fl.l_whence = tswap16(target_fl->l_whence);
1799
        fl.l_start = tswapl(target_fl->l_start);
1800
        fl.l_len = tswapl(target_fl->l_len);
1801
        fl.l_pid = tswapl(target_fl->l_pid);
1802
        unlock_user_struct(target_fl, arg, 0);
1803
        ret = fcntl(fd, cmd, &fl);
1804
        if (ret == 0) {
1805
            lock_user_struct(target_fl, arg, 0);
1806
            target_fl->l_type = tswap16(fl.l_type);
1807
            target_fl->l_whence = tswap16(fl.l_whence);
1808
            target_fl->l_start = tswapl(fl.l_start);
1809
            target_fl->l_len = tswapl(fl.l_len);
1810
            target_fl->l_pid = tswapl(fl.l_pid);
1811
            unlock_user_struct(target_fl, arg, 1);
1812
        }
1813
        break;
1814
        
1815
    case TARGET_F_SETLK:
1816
    case TARGET_F_SETLKW:
1817
        lock_user_struct(target_fl, arg, 1);
1818
        fl.l_type = tswap16(target_fl->l_type);
1819
        fl.l_whence = tswap16(target_fl->l_whence);
1820
        fl.l_start = tswapl(target_fl->l_start);
1821
        fl.l_len = tswapl(target_fl->l_len);
1822
        fl.l_pid = tswapl(target_fl->l_pid);
1823
        unlock_user_struct(target_fl, arg, 0);
1824
        ret = fcntl(fd, cmd, &fl);
1825
        break;
1826
        
1827
    case TARGET_F_GETLK64:
1828
        lock_user_struct(target_fl64, arg, 1);
1829
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
1830
        fl64.l_whence = tswap16(target_fl64->l_whence);
1831
        fl64.l_start = tswapl(target_fl64->l_start);
1832
        fl64.l_len = tswapl(target_fl64->l_len);
1833
        fl64.l_pid = tswap16(target_fl64->l_pid);
1834
        unlock_user_struct(target_fl64, arg, 0);
1835
        ret = fcntl(fd, cmd >> 1, &fl64);
1836
        if (ret == 0) {
1837
            lock_user_struct(target_fl64, arg, 0);
1838
            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
1839
            target_fl64->l_whence = tswap16(fl64.l_whence);
1840
            target_fl64->l_start = tswapl(fl64.l_start);
1841
            target_fl64->l_len = tswapl(fl64.l_len);
1842
            target_fl64->l_pid = tswapl(fl64.l_pid);
1843
            unlock_user_struct(target_fl64, arg, 1);
1844
        }
1845
                break;
1846
    case TARGET_F_SETLK64:
1847
    case TARGET_F_SETLKW64:
1848
        lock_user_struct(target_fl64, arg, 1);
1849
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
1850
        fl64.l_whence = tswap16(target_fl64->l_whence);
1851
        fl64.l_start = tswapl(target_fl64->l_start);
1852
        fl64.l_len = tswapl(target_fl64->l_len);
1853
        fl64.l_pid = tswap16(target_fl64->l_pid);
1854
        unlock_user_struct(target_fl64, arg, 0);
1855
                ret = fcntl(fd, cmd >> 1, &fl64);
1856
        break;
1857

    
1858
    case F_GETFL:
1859
        ret = fcntl(fd, cmd, arg);
1860
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1861
        break;
1862

    
1863
    case F_SETFL:
1864
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1865
        break;
1866

    
1867
    default:
1868
        ret = fcntl(fd, cmd, arg);
1869
        break;
1870
    }
1871
    return ret;
1872
}
1873

    
1874
#ifdef USE_UID16
1875

    
1876
static inline int high2lowuid(int uid)
1877
{
1878
    if (uid > 65535)
1879
        return 65534;
1880
    else
1881
        return uid;
1882
}
1883

    
1884
static inline int high2lowgid(int gid)
1885
{
1886
    if (gid > 65535)
1887
        return 65534;
1888
    else
1889
        return gid;
1890
}
1891

    
1892
static inline int low2highuid(int uid)
1893
{
1894
    if ((int16_t)uid == -1)
1895
        return -1;
1896
    else
1897
        return uid;
1898
}
1899

    
1900
static inline int low2highgid(int gid)
1901
{
1902
    if ((int16_t)gid == -1)
1903
        return -1;
1904
    else
1905
        return gid;
1906
}
1907

    
1908
#endif /* USE_UID16 */
1909

    
1910
void syscall_init(void)
1911
{
1912
    IOCTLEntry *ie;
1913
    const argtype *arg_type;
1914
    int size;
1915

    
1916
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1917
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1918
#include "syscall_types.h"
1919
#undef STRUCT
1920
#undef STRUCT_SPECIAL
1921

    
1922
    /* we patch the ioctl size if necessary. We rely on the fact that
1923
       no ioctl has all the bits at '1' in the size field */
1924
    ie = ioctl_entries;
1925
    while (ie->target_cmd != 0) {
1926
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1927
            TARGET_IOC_SIZEMASK) {
1928
            arg_type = ie->arg_type;
1929
            if (arg_type[0] != TYPE_PTR) {
1930
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1931
                        ie->target_cmd);
1932
                exit(1);
1933
            }
1934
            arg_type++;
1935
            size = thunk_type_size(arg_type, 0);
1936
            ie->target_cmd = (ie->target_cmd & 
1937
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1938
                (size << TARGET_IOC_SIZESHIFT);
1939
        }
1940
        /* automatic consistency check if same arch */
1941
#if defined(__i386__) && defined(TARGET_I386)
1942
        if (ie->target_cmd != ie->host_cmd) {
1943
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1944
                    ie->target_cmd, ie->host_cmd);
1945
        }
1946
#endif
1947
        ie++;
1948
    }
1949
}
1950

    
1951
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1952
{
1953
#ifdef TARGET_WORDS_BIG_ENDIAN
1954
    return ((uint64_t)word0 << 32) | word1;
1955
#else
1956
    return ((uint64_t)word1 << 32) | word0;
1957
#endif
1958
}
1959

    
1960
#ifdef TARGET_NR_truncate64
1961
static inline long target_truncate64(void *cpu_env, const char *arg1,
1962
                                     long arg2, long arg3, long arg4)
1963
{
1964
#ifdef TARGET_ARM
1965
    if (((CPUARMState *)cpu_env)->eabi)
1966
      {
1967
        arg2 = arg3;
1968
        arg3 = arg4;
1969
      }
1970
#endif
1971
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1972
}
1973
#endif
1974

    
1975
#ifdef TARGET_NR_ftruncate64
1976
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1977
                                      long arg3, long arg4)
1978
{
1979
#ifdef TARGET_ARM
1980
    if (((CPUARMState *)cpu_env)->eabi)
1981
      {
1982
        arg2 = arg3;
1983
        arg3 = arg4;
1984
      }
1985
#endif
1986
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1987
}
1988
#endif
1989

    
1990
static inline void target_to_host_timespec(struct timespec *host_ts,
1991
                                           target_ulong target_addr)
1992
{
1993
    struct target_timespec *target_ts;
1994

    
1995
    lock_user_struct(target_ts, target_addr, 1);
1996
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
1997
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1998
    unlock_user_struct(target_ts, target_addr, 0);
1999
}
2000

    
2001
static inline void host_to_target_timespec(target_ulong target_addr,
2002
                                           struct timespec *host_ts)
2003
{
2004
    struct target_timespec *target_ts;
2005

    
2006
    lock_user_struct(target_ts, target_addr, 0);
2007
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
2008
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
2009
    unlock_user_struct(target_ts, target_addr, 1);
2010
}
2011

    
2012
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
2013
                long arg4, long arg5, long arg6)
2014
{
2015
    long ret;
2016
    struct stat st;
2017
    struct statfs stfs;
2018
    void *p;
2019
    
2020
#ifdef DEBUG
2021
    gemu_log("syscall %d", num);
2022
#endif
2023
    switch(num) {
2024
    case TARGET_NR_exit:
2025
#ifdef HAVE_GPROF
2026
        _mcleanup();
2027
#endif
2028
        gdb_exit(cpu_env, arg1);
2029
        /* XXX: should free thread stack and CPU env */
2030
        _exit(arg1);
2031
        ret = 0; /* avoid warning */
2032
        break;
2033
    case TARGET_NR_read:
2034
        page_unprotect_range(arg2, arg3);
2035
        p = lock_user(arg2, arg3, 0);
2036
        ret = get_errno(read(arg1, p, arg3));
2037
        unlock_user(p, arg2, ret);
2038
        break;
2039
    case TARGET_NR_write:
2040
        p = lock_user(arg2, arg3, 1);
2041
        ret = get_errno(write(arg1, p, arg3));
2042
        unlock_user(p, arg2, 0);
2043
        break;
2044
    case TARGET_NR_open:
2045
        p = lock_user_string(arg1);
2046
        ret = get_errno(open(path(p),
2047
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
2048
                             arg3));
2049
        unlock_user(p, arg1, 0);
2050
        break;
2051
    case TARGET_NR_close:
2052
        ret = get_errno(close(arg1));
2053
        break;
2054
    case TARGET_NR_brk:
2055
        ret = do_brk(arg1);
2056
        break;
2057
    case TARGET_NR_fork:
2058
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
2059
        break;
2060
    case TARGET_NR_waitpid:
2061
        {
2062
            int status;
2063
            ret = get_errno(waitpid(arg1, &status, arg3));
2064
            if (!is_error(ret) && arg2)
2065
                tput32(arg2, status);
2066
        }
2067
        break;
2068
    case TARGET_NR_creat:
2069
        p = lock_user_string(arg1);
2070
        ret = get_errno(creat(p, arg2));
2071
        unlock_user(p, arg1, 0);
2072
        break;
2073
    case TARGET_NR_link:
2074
        {
2075
            void * p2;
2076
            p = lock_user_string(arg1);
2077
            p2 = lock_user_string(arg2);
2078
            ret = get_errno(link(p, p2));
2079
            unlock_user(p2, arg2, 0);
2080
            unlock_user(p, arg1, 0);
2081
        }
2082
        break;
2083
    case TARGET_NR_unlink:
2084
        p = lock_user_string(arg1);
2085
        ret = get_errno(unlink(p));
2086
        unlock_user(p, arg1, 0);
2087
        break;
2088
    case TARGET_NR_execve:
2089
        {
2090
            char **argp, **envp;
2091
            int argc, envc;
2092
            target_ulong gp;
2093
            target_ulong guest_argp;
2094
            target_ulong guest_envp;
2095
            target_ulong addr;
2096
            char **q;
2097

    
2098
            argc = 0;
2099
            guest_argp = arg2;
2100
            for (gp = guest_argp; tgetl(gp); gp++)
2101
                argc++;
2102
            envc = 0;
2103
            guest_envp = arg3;
2104
            for (gp = guest_envp; tgetl(gp); gp++)
2105
                envc++;
2106

    
2107
            argp = alloca((argc + 1) * sizeof(void *));
2108
            envp = alloca((envc + 1) * sizeof(void *));
2109

    
2110
            for (gp = guest_argp, q = argp; ;
2111
                  gp += sizeof(target_ulong), q++) {
2112
                addr = tgetl(gp);
2113
                if (!addr)
2114
                    break;
2115
                *q = lock_user_string(addr);
2116
            }
2117
            *q = NULL;
2118

    
2119
            for (gp = guest_envp, q = envp; ;
2120
                  gp += sizeof(target_ulong), q++) {
2121
                addr = tgetl(gp);
2122
                if (!addr)
2123
                    break;
2124
                *q = lock_user_string(addr);
2125
            }
2126
            *q = NULL;
2127

    
2128
            p = lock_user_string(arg1);
2129
            ret = get_errno(execve(p, argp, envp));
2130
            unlock_user(p, arg1, 0);
2131

    
2132
            for (gp = guest_argp, q = argp; *q;
2133
                  gp += sizeof(target_ulong), q++) {
2134
                addr = tgetl(gp);
2135
                unlock_user(*q, addr, 0);
2136
            }
2137
            for (gp = guest_envp, q = envp; *q;
2138
                  gp += sizeof(target_ulong), q++) {
2139
                addr = tgetl(gp);
2140
                unlock_user(*q, addr, 0);
2141
            }
2142
        }
2143
        break;
2144
    case TARGET_NR_chdir:
2145
        p = lock_user_string(arg1);
2146
        ret = get_errno(chdir(p));
2147
        unlock_user(p, arg1, 0);
2148
        break;
2149
#ifdef TARGET_NR_time
2150
    case TARGET_NR_time:
2151
        {
2152
            time_t host_time;
2153
            ret = get_errno(time(&host_time));
2154
            if (!is_error(ret) && arg1)
2155
                tputl(arg1, host_time);
2156
        }
2157
        break;
2158
#endif
2159
    case TARGET_NR_mknod:
2160
        p = lock_user_string(arg1);
2161
        ret = get_errno(mknod(p, arg2, arg3));
2162
        unlock_user(p, arg1, 0);
2163
        break;
2164
    case TARGET_NR_chmod:
2165
        p = lock_user_string(arg1);
2166
        ret = get_errno(chmod(p, arg2));
2167
        unlock_user(p, arg1, 0);
2168
        break;
2169
#ifdef TARGET_NR_break
2170
    case TARGET_NR_break:
2171
        goto unimplemented;
2172
#endif
2173
#ifdef TARGET_NR_oldstat
2174
    case TARGET_NR_oldstat:
2175
        goto unimplemented;
2176
#endif
2177
    case TARGET_NR_lseek:
2178
        ret = get_errno(lseek(arg1, arg2, arg3));
2179
        break;
2180
    case TARGET_NR_getpid:
2181
        ret = get_errno(getpid());
2182
        break;
2183
    case TARGET_NR_mount:
2184
                {
2185
                        /* need to look at the data field */
2186
                        void *p2, *p3;
2187
                        p = lock_user_string(arg1);
2188
                        p2 = lock_user_string(arg2);
2189
                        p3 = lock_user_string(arg3);
2190
                        ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5));
2191
                        unlock_user(p, arg1, 0);
2192
                        unlock_user(p2, arg2, 0);
2193
                        unlock_user(p3, arg3, 0);
2194
                        break;
2195
                }
2196
    case TARGET_NR_umount:
2197
        p = lock_user_string(arg1);
2198
        ret = get_errno(umount(p));
2199
        unlock_user(p, arg1, 0);
2200
        break;
2201
    case TARGET_NR_stime:
2202
        {
2203
            time_t host_time;
2204
            host_time = tgetl(arg1);
2205
            ret = get_errno(stime(&host_time));
2206
        }
2207
        break;
2208
    case TARGET_NR_ptrace:
2209
        goto unimplemented;
2210
    case TARGET_NR_alarm:
2211
        ret = alarm(arg1);
2212
        break;
2213
#ifdef TARGET_NR_oldfstat
2214
    case TARGET_NR_oldfstat:
2215
        goto unimplemented;
2216
#endif
2217
    case TARGET_NR_pause:
2218
        ret = get_errno(pause());
2219
        break;
2220
    case TARGET_NR_utime:
2221
        {
2222
            struct utimbuf tbuf, *host_tbuf;
2223
            struct target_utimbuf *target_tbuf;
2224
            if (arg2) {
2225
                lock_user_struct(target_tbuf, arg2, 1);
2226
                tbuf.actime = tswapl(target_tbuf->actime);
2227
                tbuf.modtime = tswapl(target_tbuf->modtime);
2228
                unlock_user_struct(target_tbuf, arg2, 0);
2229
                host_tbuf = &tbuf;
2230
            } else {
2231
                host_tbuf = NULL;
2232
            }
2233
            p = lock_user_string(arg1);
2234
            ret = get_errno(utime(p, host_tbuf));
2235
            unlock_user(p, arg1, 0);
2236
        }
2237
        break;
2238
    case TARGET_NR_utimes:
2239
        {
2240
            struct timeval *tvp, tv[2];
2241
            if (arg2) {
2242
                target_to_host_timeval(&tv[0], arg2);
2243
                target_to_host_timeval(&tv[1],
2244
                    arg2 + sizeof (struct target_timeval));
2245
                tvp = tv;
2246
            } else {
2247
                tvp = NULL;
2248
            }
2249
            p = lock_user_string(arg1);
2250
            ret = get_errno(utimes(p, tvp));
2251
            unlock_user(p, arg1, 0);
2252
        }
2253
        break;
2254
#ifdef TARGET_NR_stty
2255
    case TARGET_NR_stty:
2256
        goto unimplemented;
2257
#endif
2258
#ifdef TARGET_NR_gtty
2259
    case TARGET_NR_gtty:
2260
        goto unimplemented;
2261
#endif
2262
    case TARGET_NR_access:
2263
        p = lock_user_string(arg1);
2264
        ret = get_errno(access(p, arg2));
2265
        unlock_user(p, arg1, 0);
2266
        break;
2267
    case TARGET_NR_nice:
2268
        ret = get_errno(nice(arg1));
2269
        break;
2270
#ifdef TARGET_NR_ftime
2271
    case TARGET_NR_ftime:
2272
        goto unimplemented;
2273
#endif
2274
    case TARGET_NR_sync:
2275
        sync();
2276
        ret = 0;
2277
        break;
2278
    case TARGET_NR_kill:
2279
        ret = get_errno(kill(arg1, arg2));
2280
        break;
2281
    case TARGET_NR_rename:
2282
        {
2283
            void *p2;
2284
            p = lock_user_string(arg1);
2285
            p2 = lock_user_string(arg2);
2286
            ret = get_errno(rename(p, p2));
2287
            unlock_user(p2, arg2, 0);
2288
            unlock_user(p, arg1, 0);
2289
        }
2290
        break;
2291
    case TARGET_NR_mkdir:
2292
        p = lock_user_string(arg1);
2293
        ret = get_errno(mkdir(p, arg2));
2294
        unlock_user(p, arg1, 0);
2295
        break;
2296
    case TARGET_NR_rmdir:
2297
        p = lock_user_string(arg1);
2298
        ret = get_errno(rmdir(p));
2299
        unlock_user(p, arg1, 0);
2300
        break;
2301
    case TARGET_NR_dup:
2302
        ret = get_errno(dup(arg1));
2303
        break;
2304
    case TARGET_NR_pipe:
2305
        {
2306
            int host_pipe[2];
2307
            ret = get_errno(pipe(host_pipe));
2308
            if (!is_error(ret)) {
2309
                tput32(arg1, host_pipe[0]);
2310
                tput32(arg1 + 4, host_pipe[1]);
2311
            }
2312
        }
2313
        break;
2314
    case TARGET_NR_times:
2315
        {
2316
            struct target_tms *tmsp;
2317
            struct tms tms;
2318
            ret = get_errno(times(&tms));
2319
            if (arg1) {
2320
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2321
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2322
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2323
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2324
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2325
            }
2326
            if (!is_error(ret))
2327
                ret = host_to_target_clock_t(ret);
2328
        }
2329
        break;
2330
#ifdef TARGET_NR_prof
2331
    case TARGET_NR_prof:
2332
        goto unimplemented;
2333
#endif
2334
    case TARGET_NR_signal:
2335
        goto unimplemented;
2336

    
2337
    case TARGET_NR_acct:
2338
        p = lock_user_string(arg1);
2339
        ret = get_errno(acct(path(p)));
2340
        unlock_user(p, arg1, 0);
2341
        break;
2342
    case TARGET_NR_umount2:
2343
        p = lock_user_string(arg1);
2344
        ret = get_errno(umount2(p, arg2));
2345
        unlock_user(p, arg1, 0);
2346
        break;
2347
#ifdef TARGET_NR_lock
2348
    case TARGET_NR_lock:
2349
        goto unimplemented;
2350
#endif
2351
    case TARGET_NR_ioctl:
2352
        ret = do_ioctl(arg1, arg2, arg3);
2353
        break;
2354
    case TARGET_NR_fcntl:
2355
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
2356
        break;
2357
#ifdef TARGET_NR_mpx
2358
    case TARGET_NR_mpx:
2359
        goto unimplemented;
2360
#endif
2361
    case TARGET_NR_setpgid:
2362
        ret = get_errno(setpgid(arg1, arg2));
2363
        break;
2364
#ifdef TARGET_NR_ulimit
2365
    case TARGET_NR_ulimit:
2366
        goto unimplemented;
2367
#endif
2368
#ifdef TARGET_NR_oldolduname
2369
    case TARGET_NR_oldolduname:
2370
        goto unimplemented;
2371
#endif
2372
    case TARGET_NR_umask:
2373
        ret = get_errno(umask(arg1));
2374
        break;
2375
    case TARGET_NR_chroot:
2376
        p = lock_user_string(arg1);
2377
        ret = get_errno(chroot(p));
2378
        unlock_user(p, arg1, 0);
2379
        break;
2380
    case TARGET_NR_ustat:
2381
        goto unimplemented;
2382
    case TARGET_NR_dup2:
2383
        ret = get_errno(dup2(arg1, arg2));
2384
        break;
2385
    case TARGET_NR_getppid:
2386
        ret = get_errno(getppid());
2387
        break;
2388
    case TARGET_NR_getpgrp:
2389
        ret = get_errno(getpgrp());
2390
        break;
2391
    case TARGET_NR_setsid:
2392
        ret = get_errno(setsid());
2393
        break;
2394
    case TARGET_NR_sigaction:
2395
        {
2396
        #if !defined(TARGET_MIPS)
2397
            struct target_old_sigaction *old_act;
2398
            struct target_sigaction act, oact, *pact;
2399
            if (arg2) {
2400
                lock_user_struct(old_act, arg2, 1);
2401
                act._sa_handler = old_act->_sa_handler;
2402
                target_siginitset(&act.sa_mask, old_act->sa_mask);
2403
                act.sa_flags = old_act->sa_flags;
2404
                act.sa_restorer = old_act->sa_restorer;
2405
                unlock_user_struct(old_act, arg2, 0);
2406
                pact = &act;
2407
            } else {
2408
                pact = NULL;
2409
            }
2410
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2411
            if (!is_error(ret) && arg3) {
2412
                lock_user_struct(old_act, arg3, 0);
2413
                old_act->_sa_handler = oact._sa_handler;
2414
                old_act->sa_mask = oact.sa_mask.sig[0];
2415
                old_act->sa_flags = oact.sa_flags;
2416
                old_act->sa_restorer = oact.sa_restorer;
2417
                unlock_user_struct(old_act, arg3, 1);
2418
            }
2419
        #else
2420
            struct target_sigaction act, oact, *pact, *old_act;
2421

    
2422
            if (arg2) {
2423
                lock_user_struct(old_act, arg2, 1);
2424
                act._sa_handler = old_act->_sa_handler;
2425
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
2426
                act.sa_flags = old_act->sa_flags;
2427
                unlock_user_struct(old_act, arg2, 0);
2428
                pact = &act;
2429
            } else {
2430
                pact = NULL;
2431
            }
2432

    
2433
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2434

    
2435
            if (!is_error(ret) && arg3) {
2436
                lock_user_struct(old_act, arg3, 0);
2437
                old_act->_sa_handler = oact._sa_handler;
2438
                old_act->sa_flags = oact.sa_flags;
2439
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
2440
                old_act->sa_mask.sig[1] = 0;
2441
                old_act->sa_mask.sig[2] = 0;
2442
                old_act->sa_mask.sig[3] = 0;
2443
                unlock_user_struct(old_act, arg3, 1);
2444
            }
2445
        #endif
2446
        }
2447
        break;
2448
    case TARGET_NR_rt_sigaction:
2449
        {
2450
            struct target_sigaction *act;
2451
            struct target_sigaction *oact;
2452

    
2453
            if (arg2)
2454
                lock_user_struct(act, arg2, 1);
2455
            else
2456
                act = NULL;
2457
            if (arg3)
2458
                lock_user_struct(oact, arg3, 0);
2459
            else
2460
                oact = NULL;
2461
            ret = get_errno(do_sigaction(arg1, act, oact));
2462
            if (arg2)
2463
                unlock_user_struct(act, arg2, 0);
2464
            if (arg3)
2465
                unlock_user_struct(oact, arg3, 1);
2466
        }
2467
        break;
2468
    case TARGET_NR_sgetmask:
2469
        {
2470
            sigset_t cur_set;
2471
            target_ulong target_set;
2472
            sigprocmask(0, NULL, &cur_set);
2473
            host_to_target_old_sigset(&target_set, &cur_set);
2474
            ret = target_set;
2475
        }
2476
        break;
2477
    case TARGET_NR_ssetmask:
2478
        {
2479
            sigset_t set, oset, cur_set;
2480
            target_ulong target_set = arg1;
2481
            sigprocmask(0, NULL, &cur_set);
2482
            target_to_host_old_sigset(&set, &target_set);
2483
            sigorset(&set, &set, &cur_set);
2484
            sigprocmask(SIG_SETMASK, &set, &oset);
2485
            host_to_target_old_sigset(&target_set, &oset);
2486
            ret = target_set;
2487
        }
2488
        break;
2489
    case TARGET_NR_sigprocmask:
2490
        {
2491
            int how = arg1;
2492
            sigset_t set, oldset, *set_ptr;
2493
            
2494
            if (arg2) {
2495
                switch(how) {
2496
                case TARGET_SIG_BLOCK:
2497
                    how = SIG_BLOCK;
2498
                    break;
2499
                case TARGET_SIG_UNBLOCK:
2500
                    how = SIG_UNBLOCK;
2501
                    break;
2502
                case TARGET_SIG_SETMASK:
2503
                    how = SIG_SETMASK;
2504
                    break;
2505
                default:
2506
                    ret = -EINVAL;
2507
                    goto fail;
2508
                }
2509
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2510
                target_to_host_old_sigset(&set, p);
2511
                unlock_user(p, arg2, 0);
2512
                set_ptr = &set;
2513
            } else {
2514
                how = 0;
2515
                set_ptr = NULL;
2516
            }
2517
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2518
            if (!is_error(ret) && arg3) {
2519
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2520
                host_to_target_old_sigset(p, &oldset);
2521
                unlock_user(p, arg3, sizeof(target_sigset_t));
2522
            }
2523
        }
2524
        break;
2525
    case TARGET_NR_rt_sigprocmask:
2526
        {
2527
            int how = arg1;
2528
            sigset_t set, oldset, *set_ptr;
2529
            
2530
            if (arg2) {
2531
                switch(how) {
2532
                case TARGET_SIG_BLOCK:
2533
                    how = SIG_BLOCK;
2534
                    break;
2535
                case TARGET_SIG_UNBLOCK:
2536
                    how = SIG_UNBLOCK;
2537
                    break;
2538
                case TARGET_SIG_SETMASK:
2539
                    how = SIG_SETMASK;
2540
                    break;
2541
                default:
2542
                    ret = -EINVAL;
2543
                    goto fail;
2544
                }
2545
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2546
                target_to_host_sigset(&set, p);
2547
                unlock_user(p, arg2, 0);
2548
                set_ptr = &set;
2549
            } else {
2550
                how = 0;
2551
                set_ptr = NULL;
2552
            }
2553
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2554
            if (!is_error(ret) && arg3) {
2555
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2556
                host_to_target_sigset(p, &oldset);
2557
                unlock_user(p, arg3, sizeof(target_sigset_t));
2558
            }
2559
        }
2560
        break;
2561
    case TARGET_NR_sigpending:
2562
        {
2563
            sigset_t set;
2564
            ret = get_errno(sigpending(&set));
2565
            if (!is_error(ret)) {
2566
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2567
                host_to_target_old_sigset(p, &set);
2568
                unlock_user(p, arg1, sizeof(target_sigset_t));
2569
            }
2570
        }
2571
        break;
2572
    case TARGET_NR_rt_sigpending:
2573
        {
2574
            sigset_t set;
2575
            ret = get_errno(sigpending(&set));
2576
            if (!is_error(ret)) {
2577
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2578
                host_to_target_sigset(p, &set);
2579
                unlock_user(p, arg1, sizeof(target_sigset_t));
2580
            }
2581
        }
2582
        break;
2583
    case TARGET_NR_sigsuspend:
2584
        {
2585
            sigset_t set;
2586
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2587
            target_to_host_old_sigset(&set, p);
2588
            unlock_user(p, arg1, 0);
2589
            ret = get_errno(sigsuspend(&set));
2590
        }
2591
        break;
2592
    case TARGET_NR_rt_sigsuspend:
2593
        {
2594
            sigset_t set;
2595
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2596
            target_to_host_sigset(&set, p);
2597
            unlock_user(p, arg1, 0);
2598
            ret = get_errno(sigsuspend(&set));
2599
        }
2600
        break;
2601
    case TARGET_NR_rt_sigtimedwait:
2602
        {
2603
            sigset_t set;
2604
            struct timespec uts, *puts;
2605
            siginfo_t uinfo;
2606
            
2607
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2608
            target_to_host_sigset(&set, p);
2609
            unlock_user(p, arg1, 0);
2610
            if (arg3) {
2611
                puts = &uts;
2612
                target_to_host_timespec(puts, arg3);
2613
            } else {
2614
                puts = NULL;
2615
            }
2616
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2617
            if (!is_error(ret) && arg2) {
2618
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
2619
                host_to_target_siginfo(p, &uinfo);
2620
                unlock_user(p, arg2, sizeof(target_sigset_t));
2621
            }
2622
        }
2623
        break;
2624
    case TARGET_NR_rt_sigqueueinfo:
2625
        {
2626
            siginfo_t uinfo;
2627
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
2628
            target_to_host_siginfo(&uinfo, p);
2629
            unlock_user(p, arg1, 0);
2630
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2631
        }
2632
        break;
2633
    case TARGET_NR_sigreturn:
2634
        /* NOTE: ret is eax, so not transcoding must be done */
2635
        ret = do_sigreturn(cpu_env);
2636
        break;
2637
    case TARGET_NR_rt_sigreturn:
2638
        /* NOTE: ret is eax, so not transcoding must be done */
2639
        ret = do_rt_sigreturn(cpu_env);
2640
        break;
2641
    case TARGET_NR_sethostname:
2642
        p = lock_user_string(arg1);
2643
        ret = get_errno(sethostname(p, arg2));
2644
        unlock_user(p, arg1, 0);
2645
        break;
2646
    case TARGET_NR_setrlimit:
2647
        {
2648
            /* XXX: convert resource ? */
2649
            int resource = arg1;
2650
            struct target_rlimit *target_rlim;
2651
            struct rlimit rlim;
2652
            lock_user_struct(target_rlim, arg2, 1);
2653
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2654
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
2655
            unlock_user_struct(target_rlim, arg2, 0);
2656
            ret = get_errno(setrlimit(resource, &rlim));
2657
        }
2658
        break;
2659
    case TARGET_NR_getrlimit:
2660
        {
2661
            /* XXX: convert resource ? */
2662
            int resource = arg1;
2663
            struct target_rlimit *target_rlim;
2664
            struct rlimit rlim;
2665
            
2666
            ret = get_errno(getrlimit(resource, &rlim));
2667
            if (!is_error(ret)) {
2668
                lock_user_struct(target_rlim, arg2, 0);
2669
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2670
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
2671
                unlock_user_struct(target_rlim, arg2, 1);
2672
            }
2673
        }
2674
        break;
2675
    case TARGET_NR_getrusage:
2676
        {
2677
            struct rusage rusage;
2678
            ret = get_errno(getrusage(arg1, &rusage));
2679
            if (!is_error(ret)) {
2680
                host_to_target_rusage(arg2, &rusage);
2681
            }
2682
        }
2683
        break;
2684
    case TARGET_NR_gettimeofday:
2685
        {
2686
            struct timeval tv;
2687
            ret = get_errno(gettimeofday(&tv, NULL));
2688
            if (!is_error(ret)) {
2689
                host_to_target_timeval(arg1, &tv);
2690
            }
2691
        }
2692
        break;
2693
    case TARGET_NR_settimeofday:
2694
        {
2695
            struct timeval tv;
2696
            target_to_host_timeval(&tv, arg1);
2697
            ret = get_errno(settimeofday(&tv, NULL));
2698
        }
2699
        break;
2700
#ifdef TARGET_NR_select
2701
    case TARGET_NR_select:
2702
        {
2703
            struct target_sel_arg_struct *sel;
2704
            target_ulong inp, outp, exp, tvp;
2705
            long nsel;
2706

    
2707
            lock_user_struct(sel, arg1, 1);
2708
            nsel = tswapl(sel->n);
2709
            inp = tswapl(sel->inp);
2710
            outp = tswapl(sel->outp);
2711
            exp = tswapl(sel->exp);
2712
            tvp = tswapl(sel->tvp);
2713
            unlock_user_struct(sel, arg1, 0);
2714
            ret = do_select(nsel, inp, outp, exp, tvp);
2715
        }
2716
        break;
2717
#endif
2718
    case TARGET_NR_symlink:
2719
        {
2720
            void *p2;
2721
            p = lock_user_string(arg1);
2722
            p2 = lock_user_string(arg2);
2723
            ret = get_errno(symlink(p, p2));
2724
            unlock_user(p2, arg2, 0);
2725
            unlock_user(p, arg1, 0);
2726
        }
2727
        break;
2728
#ifdef TARGET_NR_oldlstat
2729
    case TARGET_NR_oldlstat:
2730
        goto unimplemented;
2731
#endif
2732
    case TARGET_NR_readlink:
2733
        {
2734
            void *p2;
2735
            p = lock_user_string(arg1);
2736
            p2 = lock_user(arg2, arg3, 0);
2737
            ret = get_errno(readlink(path(p), p2, arg3));
2738
            unlock_user(p2, arg2, ret);
2739
            unlock_user(p, arg1, 0);
2740
        }
2741
        break;
2742
    case TARGET_NR_uselib:
2743
        goto unimplemented;
2744
    case TARGET_NR_swapon:
2745
        p = lock_user_string(arg1);
2746
        ret = get_errno(swapon(p, arg2));
2747
        unlock_user(p, arg1, 0);
2748
        break;
2749
    case TARGET_NR_reboot:
2750
        goto unimplemented;
2751
    case TARGET_NR_readdir:
2752
        goto unimplemented;
2753
    case TARGET_NR_mmap:
2754
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
2755
        {
2756
            target_ulong *v;
2757
            target_ulong v1, v2, v3, v4, v5, v6;
2758
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2759
            v1 = tswapl(v[0]);
2760
            v2 = tswapl(v[1]);
2761
            v3 = tswapl(v[2]);
2762
            v4 = tswapl(v[3]);
2763
            v5 = tswapl(v[4]);
2764
            v6 = tswapl(v[5]);
2765
            unlock_user(v, arg1, 0);
2766
            ret = get_errno(target_mmap(v1, v2, v3, 
2767
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
2768
                                        v5, v6));
2769
        }
2770
#else
2771
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2772
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2773
                                    arg5,
2774
                                    arg6));
2775
#endif
2776
        break;
2777
#ifdef TARGET_NR_mmap2
2778
    case TARGET_NR_mmap2:
2779
#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
2780
#define MMAP_SHIFT 12
2781
#else
2782
#define MMAP_SHIFT TARGET_PAGE_BITS
2783
#endif
2784
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2785
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2786
                                    arg5,
2787
                                    arg6 << MMAP_SHIFT));
2788
        break;
2789
#endif
2790
    case TARGET_NR_munmap:
2791
        ret = get_errno(target_munmap(arg1, arg2));
2792
        break;
2793
    case TARGET_NR_mprotect:
2794
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
2795
        break;
2796
    case TARGET_NR_mremap:
2797
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2798
        break;
2799
        /* ??? msync/mlock/munlock are broken for softmmu.  */
2800
    case TARGET_NR_msync:
2801
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
2802
        break;
2803
    case TARGET_NR_mlock:
2804
        ret = get_errno(mlock(g2h(arg1), arg2));
2805
        break;
2806
    case TARGET_NR_munlock:
2807
        ret = get_errno(munlock(g2h(arg1), arg2));
2808
        break;
2809
    case TARGET_NR_mlockall:
2810
        ret = get_errno(mlockall(arg1));
2811
        break;
2812
    case TARGET_NR_munlockall:
2813
        ret = get_errno(munlockall());
2814
        break;
2815
    case TARGET_NR_truncate:
2816
        p = lock_user_string(arg1);
2817
        ret = get_errno(truncate(p, arg2));
2818
        unlock_user(p, arg1, 0);
2819
        break;
2820
    case TARGET_NR_ftruncate:
2821
        ret = get_errno(ftruncate(arg1, arg2));
2822
        break;
2823
    case TARGET_NR_fchmod:
2824
        ret = get_errno(fchmod(arg1, arg2));
2825
        break;
2826
    case TARGET_NR_getpriority:
2827
        ret = get_errno(getpriority(arg1, arg2));
2828
        break;
2829
    case TARGET_NR_setpriority:
2830
        ret = get_errno(setpriority(arg1, arg2, arg3));
2831
        break;
2832
#ifdef TARGET_NR_profil
2833
    case TARGET_NR_profil:
2834
        goto unimplemented;
2835
#endif
2836
    case TARGET_NR_statfs:
2837
        p = lock_user_string(arg1);
2838
        ret = get_errno(statfs(path(p), &stfs));
2839
        unlock_user(p, arg1, 0);
2840
    convert_statfs:
2841
        if (!is_error(ret)) {
2842
            struct target_statfs *target_stfs;
2843
            
2844
            lock_user_struct(target_stfs, arg2, 0);
2845
            /* ??? put_user is probably wrong.  */
2846
            put_user(stfs.f_type, &target_stfs->f_type);
2847
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2848
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2849
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2850
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2851
            put_user(stfs.f_files, &target_stfs->f_files);
2852
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2853
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2854
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2855
            unlock_user_struct(target_stfs, arg2, 1);
2856
        }
2857
        break;
2858
    case TARGET_NR_fstatfs:
2859
        ret = get_errno(fstatfs(arg1, &stfs));
2860
        goto convert_statfs;
2861
#ifdef TARGET_NR_statfs64
2862
    case TARGET_NR_statfs64:
2863
        p = lock_user_string(arg1);
2864
        ret = get_errno(statfs(path(p), &stfs));
2865
        unlock_user(p, arg1, 0);
2866
    convert_statfs64:
2867
        if (!is_error(ret)) {
2868
            struct target_statfs64 *target_stfs;
2869
            
2870
            lock_user_struct(target_stfs, arg3, 0);
2871
            /* ??? put_user is probably wrong.  */
2872
            put_user(stfs.f_type, &target_stfs->f_type);
2873
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2874
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2875
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2876
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2877
            put_user(stfs.f_files, &target_stfs->f_files);
2878
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2879
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2880
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2881
            unlock_user_struct(target_stfs, arg3, 0);
2882
        }
2883
        break;
2884
    case TARGET_NR_fstatfs64:
2885
        ret = get_errno(fstatfs(arg1, &stfs));
2886
        goto convert_statfs64;
2887
#endif
2888
#ifdef TARGET_NR_ioperm
2889
    case TARGET_NR_ioperm:
2890
        goto unimplemented;
2891
#endif
2892
    case TARGET_NR_socketcall:
2893
        ret = do_socketcall(arg1, arg2);
2894
        break;
2895

    
2896
#ifdef TARGET_NR_accept
2897
    case TARGET_NR_accept:
2898
        ret = do_accept(arg1, arg2, arg3);
2899
        break;
2900
#endif
2901
#ifdef TARGET_NR_bind
2902
    case TARGET_NR_bind:
2903
        ret = do_bind(arg1, arg2, arg3);
2904
        break;
2905
#endif
2906
#ifdef TARGET_NR_connect
2907
    case TARGET_NR_connect:
2908
        ret = do_connect(arg1, arg2, arg3);
2909
        break;
2910
#endif
2911
#ifdef TARGET_NR_getpeername
2912
    case TARGET_NR_getpeername:
2913
        ret = do_getpeername(arg1, arg2, arg3);
2914
        break;
2915
#endif
2916
#ifdef TARGET_NR_getsockname
2917
    case TARGET_NR_getsockname:
2918
        ret = do_getsockname(arg1, arg2, arg3);
2919
        break;
2920
#endif
2921
#ifdef TARGET_NR_getsockopt
2922
    case TARGET_NR_getsockopt:
2923
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
2924
        break;
2925
#endif
2926
#ifdef TARGET_NR_listen
2927
    case TARGET_NR_listen:
2928
        ret = get_errno(listen(arg1, arg2));
2929
        break;
2930
#endif
2931
#ifdef TARGET_NR_recv
2932
    case TARGET_NR_recv:
2933
        ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
2934
        break;
2935
#endif
2936
#ifdef TARGET_NR_recvfrom
2937
    case TARGET_NR_recvfrom:
2938
        ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
2939
        break;
2940
#endif
2941
#ifdef TARGET_NR_recvmsg
2942
    case TARGET_NR_recvmsg:
2943
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
2944
        break;
2945
#endif
2946
#ifdef TARGET_NR_send
2947
    case TARGET_NR_send:
2948
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
2949
        break;
2950
#endif
2951
#ifdef TARGET_NR_sendmsg
2952
    case TARGET_NR_sendmsg:
2953
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
2954
        break;
2955
#endif
2956
#ifdef TARGET_NR_sendto
2957
    case TARGET_NR_sendto:
2958
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
2959
        break;
2960
#endif
2961
#ifdef TARGET_NR_shutdown
2962
    case TARGET_NR_shutdown:
2963
        ret = get_errno(shutdown(arg1, arg2));
2964
        break;
2965
#endif
2966
#ifdef TARGET_NR_socket
2967
    case TARGET_NR_socket:
2968
        ret = do_socket(arg1, arg2, arg3);
2969
        break;
2970
#endif
2971
#ifdef TARGET_NR_socketpair
2972
    case TARGET_NR_socketpair:
2973
        ret = do_socketpair(arg1, arg2, arg3, arg4);
2974
        break;
2975
#endif
2976
#ifdef TARGET_NR_setsockopt
2977
    case TARGET_NR_setsockopt:
2978
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
2979
        break;
2980
#endif
2981

    
2982
    case TARGET_NR_syslog:
2983
        p = lock_user_string(arg2);
2984
        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
2985
        unlock_user(p, arg2, 0);
2986
        break;
2987

    
2988
    case TARGET_NR_setitimer:
2989
        {
2990
            struct itimerval value, ovalue, *pvalue;
2991

    
2992
            if (arg2) {
2993
                pvalue = &value;
2994
                target_to_host_timeval(&pvalue->it_interval, 
2995
                                       arg2);
2996
                target_to_host_timeval(&pvalue->it_value, 
2997
                                       arg2 + sizeof(struct target_timeval));
2998
            } else {
2999
                pvalue = NULL;
3000
            }
3001
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
3002
            if (!is_error(ret) && arg3) {
3003
                host_to_target_timeval(arg3,
3004
                                       &ovalue.it_interval);
3005
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
3006
                                       &ovalue.it_value);
3007
            }
3008
        }
3009
        break;
3010
    case TARGET_NR_getitimer:
3011
        {
3012
            struct itimerval value;
3013
            
3014
            ret = get_errno(getitimer(arg1, &value));
3015
            if (!is_error(ret) && arg2) {
3016
                host_to_target_timeval(arg2,
3017
                                       &value.it_interval);
3018
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
3019
                                       &value.it_value);
3020
            }
3021
        }
3022
        break;
3023
    case TARGET_NR_stat:
3024
        p = lock_user_string(arg1);
3025
        ret = get_errno(stat(path(p), &st));
3026
        unlock_user(p, arg1, 0);
3027
        goto do_stat;
3028
    case TARGET_NR_lstat:
3029
        p = lock_user_string(arg1);
3030
        ret = get_errno(lstat(path(p), &st));
3031
        unlock_user(p, arg1, 0);
3032
        goto do_stat;
3033
    case TARGET_NR_fstat:
3034
        {
3035
            ret = get_errno(fstat(arg1, &st));
3036
        do_stat:
3037
            if (!is_error(ret)) {
3038
                struct target_stat *target_st;
3039
                
3040
                lock_user_struct(target_st, arg2, 0);
3041
                target_st->st_dev = tswap16(st.st_dev);
3042
                target_st->st_ino = tswapl(st.st_ino);
3043
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
3044
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
3045
                target_st->st_uid = tswap32(st.st_uid);
3046
                target_st->st_gid = tswap32(st.st_gid);
3047
#else
3048
                target_st->st_mode = tswap16(st.st_mode);
3049
                target_st->st_uid = tswap16(st.st_uid);
3050
                target_st->st_gid = tswap16(st.st_gid);
3051
#endif
3052
                target_st->st_nlink = tswap16(st.st_nlink);
3053
                target_st->st_rdev = tswap16(st.st_rdev);
3054
                target_st->st_size = tswapl(st.st_size);
3055
                target_st->st_blksize = tswapl(st.st_blksize);
3056
                target_st->st_blocks = tswapl(st.st_blocks);
3057
                target_st->target_st_atime = tswapl(st.st_atime);
3058
                target_st->target_st_mtime = tswapl(st.st_mtime);
3059
                target_st->target_st_ctime = tswapl(st.st_ctime);
3060
                unlock_user_struct(target_st, arg2, 1);
3061
            }
3062
        }
3063
        break;
3064
#ifdef TARGET_NR_olduname
3065
    case TARGET_NR_olduname:
3066
        goto unimplemented;
3067
#endif
3068
#ifdef TARGET_NR_iopl
3069
    case TARGET_NR_iopl:
3070
        goto unimplemented;
3071
#endif
3072
    case TARGET_NR_vhangup:
3073
        ret = get_errno(vhangup());
3074
        break;
3075
#ifdef TARGET_NR_idle
3076
    case TARGET_NR_idle:
3077
        goto unimplemented;
3078
#endif
3079
#ifdef TARGET_NR_syscall
3080
    case TARGET_NR_syscall:
3081
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
3082
            break;
3083
#endif
3084
    case TARGET_NR_wait4:
3085
        {
3086
            int status;
3087
            target_long status_ptr = arg2;
3088
            struct rusage rusage, *rusage_ptr;
3089
            target_ulong target_rusage = arg4;
3090
            if (target_rusage)
3091
                rusage_ptr = &rusage;
3092
            else
3093
                rusage_ptr = NULL;
3094
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
3095
            if (!is_error(ret)) {
3096
                if (status_ptr)
3097
                    tputl(status_ptr, status);
3098
                if (target_rusage) {
3099
                    host_to_target_rusage(target_rusage, &rusage);
3100
                }
3101
            }
3102
        }
3103
        break;
3104
    case TARGET_NR_swapoff:
3105
        p = lock_user_string(arg1);
3106
        ret = get_errno(swapoff(p));
3107
        unlock_user(p, arg1, 0);
3108
        break;
3109
    case TARGET_NR_sysinfo:
3110
        {
3111
            struct target_sysinfo *target_value;
3112
            struct sysinfo value;
3113
            ret = get_errno(sysinfo(&value));
3114
            if (!is_error(ret) && arg1)
3115
            {
3116
                /* ??? __put_user is probably wrong.  */
3117
                lock_user_struct(target_value, arg1, 0);
3118
                __put_user(value.uptime, &target_value->uptime);
3119
                __put_user(value.loads[0], &target_value->loads[0]);
3120
                __put_user(value.loads[1], &target_value->loads[1]);
3121
                __put_user(value.loads[2], &target_value->loads[2]);
3122
                __put_user(value.totalram, &target_value->totalram);
3123
                __put_user(value.freeram, &target_value->freeram);
3124
                __put_user(value.sharedram, &target_value->sharedram);
3125
                __put_user(value.bufferram, &target_value->bufferram);
3126
                __put_user(value.totalswap, &target_value->totalswap);
3127
                __put_user(value.freeswap, &target_value->freeswap);
3128
                __put_user(value.procs, &target_value->procs);
3129
                __put_user(value.totalhigh, &target_value->totalhigh);
3130
                __put_user(value.freehigh, &target_value->freehigh);
3131
                __put_user(value.mem_unit, &target_value->mem_unit);
3132
                unlock_user_struct(target_value, arg1, 1);
3133
            }
3134
        }
3135
        break;
3136
    case TARGET_NR_ipc:
3137
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3138
        break;
3139
    case TARGET_NR_fsync:
3140
        ret = get_errno(fsync(arg1));
3141
        break;
3142
    case TARGET_NR_clone:
3143
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3144
        break;
3145
#ifdef __NR_exit_group
3146
        /* new thread calls */
3147
    case TARGET_NR_exit_group:
3148
        gdb_exit(cpu_env, arg1);
3149
        ret = get_errno(exit_group(arg1));
3150
        break;
3151
#endif
3152
    case TARGET_NR_setdomainname:
3153
        p = lock_user_string(arg1);
3154
        ret = get_errno(setdomainname(p, arg2));
3155
        unlock_user(p, arg1, 0);
3156
        break;
3157
    case TARGET_NR_uname:
3158
        /* no need to transcode because we use the linux syscall */
3159
        {
3160
            struct new_utsname * buf;
3161
    
3162
            lock_user_struct(buf, arg1, 0);
3163
            ret = get_errno(sys_uname(buf));
3164
            if (!is_error(ret)) {
3165
                /* Overrite the native machine name with whatever is being
3166
                   emulated. */
3167
                strcpy (buf->machine, UNAME_MACHINE);
3168
                /* Allow the user to override the reported release.  */
3169
                if (qemu_uname_release && *qemu_uname_release)
3170
                  strcpy (buf->release, qemu_uname_release);
3171
            }
3172
            unlock_user_struct(buf, arg1, 1);
3173
        }
3174
        break;
3175
#ifdef TARGET_I386
3176
    case TARGET_NR_modify_ldt:
3177
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3178
        break;
3179
    case TARGET_NR_vm86old:
3180
        goto unimplemented;
3181
    case TARGET_NR_vm86:
3182
        ret = do_vm86(cpu_env, arg1, arg2);
3183
        break;
3184
#endif
3185
    case TARGET_NR_adjtimex:
3186
        goto unimplemented;
3187
    case TARGET_NR_create_module:
3188
    case TARGET_NR_init_module:
3189
    case TARGET_NR_delete_module:
3190
    case TARGET_NR_get_kernel_syms:
3191
        goto unimplemented;
3192
    case TARGET_NR_quotactl:
3193
        goto unimplemented;
3194
    case TARGET_NR_getpgid:
3195
        ret = get_errno(getpgid(arg1));
3196
        break;
3197
    case TARGET_NR_fchdir:
3198
        ret = get_errno(fchdir(arg1));
3199
        break;
3200
    case TARGET_NR_bdflush:
3201
        goto unimplemented;
3202
    case TARGET_NR_sysfs:
3203
        goto unimplemented;
3204
    case TARGET_NR_personality:
3205
        ret = get_errno(personality(arg1));
3206
        break;
3207
    case TARGET_NR_afs_syscall:
3208
        goto unimplemented;
3209
    case TARGET_NR__llseek:
3210
        {
3211
#if defined (__x86_64__)
3212
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
3213
            tput64(arg4, ret);
3214
#else
3215
            int64_t res;
3216
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
3217
            tput64(arg4, res);
3218
#endif
3219
        }
3220
        break;
3221
    case TARGET_NR_getdents:
3222
#if TARGET_LONG_SIZE != 4
3223
        goto unimplemented;
3224
#warning not supported
3225
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
3226
        {
3227
            struct target_dirent *target_dirp;
3228
            struct dirent *dirp;
3229
            long count = arg3;
3230

    
3231
            dirp = malloc(count);
3232
            if (!dirp)
3233
                return -ENOMEM;
3234
            
3235
            ret = get_errno(sys_getdents(arg1, dirp, count));
3236
            if (!is_error(ret)) {
3237
                struct dirent *de;
3238
                struct target_dirent *tde;
3239
                int len = ret;
3240
                int reclen, treclen;
3241
                int count1, tnamelen;
3242

    
3243
                count1 = 0;
3244
                de = dirp;
3245
                target_dirp = lock_user(arg2, count, 0);
3246
                tde = target_dirp;
3247
                while (len > 0) {
3248
                    reclen = de->d_reclen;
3249
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
3250
                    tde->d_reclen = tswap16(treclen);
3251
                    tde->d_ino = tswapl(de->d_ino);
3252
                    tde->d_off = tswapl(de->d_off);
3253
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
3254
                    if (tnamelen > 256)
3255
                        tnamelen = 256;
3256
                    /* XXX: may not be correct */
3257
                    strncpy(tde->d_name, de->d_name, tnamelen);
3258
                    de = (struct dirent *)((char *)de + reclen);
3259
                    len -= reclen;
3260
                    tde = (struct dirent *)((char *)tde + treclen);
3261
                    count1 += treclen;
3262
                }
3263
                ret = count1;
3264
            }
3265
            unlock_user(target_dirp, arg2, ret);
3266
            free(dirp);
3267
        }
3268
#else
3269
        {
3270
            struct dirent *dirp;
3271
            long count = arg3;
3272

    
3273
            dirp = lock_user(arg2, count, 0);
3274
            ret = get_errno(sys_getdents(arg1, dirp, count));
3275
            if (!is_error(ret)) {
3276
                struct dirent *de;
3277
                int len = ret;
3278
                int reclen;
3279
                de = dirp;
3280
                while (len > 0) {
3281
                    reclen = de->d_reclen;
3282
                    if (reclen > len)
3283
                        break;
3284
                    de->d_reclen = tswap16(reclen);
3285
                    tswapls(&de->d_ino);
3286
                    tswapls(&de->d_off);
3287
                    de = (struct dirent *)((char *)de + reclen);
3288
                    len -= reclen;
3289
                }
3290
            }
3291
            unlock_user(dirp, arg2, ret);
3292
        }
3293
#endif
3294
        break;
3295
#ifdef TARGET_NR_getdents64
3296
    case TARGET_NR_getdents64:
3297
        {
3298
            struct dirent64 *dirp;
3299
            long count = arg3;
3300
            dirp = lock_user(arg2, count, 0);
3301
            ret = get_errno(sys_getdents64(arg1, dirp, count));
3302
            if (!is_error(ret)) {
3303
                struct dirent64 *de;
3304
                int len = ret;
3305
                int reclen;
3306
                de = dirp;
3307
                while (len > 0) {
3308
                    reclen = de->d_reclen;
3309
                    if (reclen > len)
3310
                        break;
3311
                    de->d_reclen = tswap16(reclen);
3312
                    tswap64s(&de->d_ino);
3313
                    tswap64s(&de->d_off);
3314
                    de = (struct dirent64 *)((char *)de + reclen);
3315
                    len -= reclen;
3316
                }
3317
            }
3318
            unlock_user(dirp, arg2, ret);
3319
        }
3320
        break;
3321
#endif /* TARGET_NR_getdents64 */
3322
    case TARGET_NR__newselect:
3323
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
3324
        break;
3325
    case TARGET_NR_poll:
3326
        {
3327
            struct target_pollfd *target_pfd;
3328
            unsigned int nfds = arg2;
3329
            int timeout = arg3;
3330
            struct pollfd *pfd;
3331
            unsigned int i;
3332

    
3333
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3334
            pfd = alloca(sizeof(struct pollfd) * nfds);
3335
            for(i = 0; i < nfds; i++) {
3336
                pfd[i].fd = tswap32(target_pfd[i].fd);
3337
                pfd[i].events = tswap16(target_pfd[i].events);
3338
            }
3339
            ret = get_errno(poll(pfd, nfds, timeout));
3340
            if (!is_error(ret)) {
3341
                for(i = 0; i < nfds; i++) {
3342
                    target_pfd[i].revents = tswap16(pfd[i].revents);
3343
                }
3344
                ret += nfds * (sizeof(struct target_pollfd)
3345
                               - sizeof(struct pollfd));
3346
            }
3347
            unlock_user(target_pfd, arg1, ret);
3348
        }
3349
        break;
3350
    case TARGET_NR_flock:
3351
        /* NOTE: the flock constant seems to be the same for every
3352
           Linux platform */
3353
        ret = get_errno(flock(arg1, arg2));
3354
        break;
3355
    case TARGET_NR_readv:
3356
        {
3357
            int count = arg3;
3358
            struct iovec *vec;
3359

    
3360
            vec = alloca(count * sizeof(struct iovec));
3361
            lock_iovec(vec, arg2, count, 0);
3362
            ret = get_errno(readv(arg1, vec, count));
3363
            unlock_iovec(vec, arg2, count, 1);
3364
        }
3365
        break;
3366
    case TARGET_NR_writev:
3367
        {
3368
            int count = arg3;
3369
            struct iovec *vec;
3370

    
3371
            vec = alloca(count * sizeof(struct iovec));
3372
            lock_iovec(vec, arg2, count, 1);
3373
            ret = get_errno(writev(arg1, vec, count));
3374
            unlock_iovec(vec, arg2, count, 0);
3375
        }
3376
        break;
3377
    case TARGET_NR_getsid:
3378
        ret = get_errno(getsid(arg1));
3379
        break;
3380
    case TARGET_NR_fdatasync:
3381
        ret = get_errno(fdatasync(arg1));
3382
        break;
3383
    case TARGET_NR__sysctl:
3384
        /* We don't implement this, but ENODIR is always a safe
3385
           return value. */
3386
        return -ENOTDIR;
3387
    case TARGET_NR_sched_setparam:
3388
        {
3389
            struct sched_param *target_schp;
3390
            struct sched_param schp;
3391

    
3392
            lock_user_struct(target_schp, arg2, 1);
3393
            schp.sched_priority = tswap32(target_schp->sched_priority);
3394
            unlock_user_struct(target_schp, arg2, 0);
3395
            ret = get_errno(sched_setparam(arg1, &schp));
3396
        }
3397
        break;
3398
    case TARGET_NR_sched_getparam:
3399
        {
3400
            struct sched_param *target_schp;
3401
            struct sched_param schp;
3402
            ret = get_errno(sched_getparam(arg1, &schp));
3403
            if (!is_error(ret)) {
3404
                lock_user_struct(target_schp, arg2, 0);
3405
                target_schp->sched_priority = tswap32(schp.sched_priority);
3406
                unlock_user_struct(target_schp, arg2, 1);
3407
            }
3408
        }
3409
        break;
3410
    case TARGET_NR_sched_setscheduler:
3411
        {
3412
            struct sched_param *target_schp;
3413
            struct sched_param schp;
3414
            lock_user_struct(target_schp, arg3, 1);
3415
            schp.sched_priority = tswap32(target_schp->sched_priority);
3416
            unlock_user_struct(target_schp, arg3, 0);
3417
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3418
        }
3419
        break;
3420
    case TARGET_NR_sched_getscheduler:
3421
        ret = get_errno(sched_getscheduler(arg1));
3422
        break;
3423
    case TARGET_NR_sched_yield:
3424
        ret = get_errno(sched_yield());
3425
        break;
3426
    case TARGET_NR_sched_get_priority_max:
3427
        ret = get_errno(sched_get_priority_max(arg1));
3428
        break;
3429
    case TARGET_NR_sched_get_priority_min:
3430
        ret = get_errno(sched_get_priority_min(arg1));
3431
        break;
3432
    case TARGET_NR_sched_rr_get_interval:
3433
        {
3434
            struct timespec ts;
3435
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
3436
            if (!is_error(ret)) {
3437
                host_to_target_timespec(arg2, &ts);
3438
            }
3439
        }
3440
        break;
3441
    case TARGET_NR_nanosleep:
3442
        {
3443
            struct timespec req, rem;
3444
            target_to_host_timespec(&req, arg1);
3445
            ret = get_errno(nanosleep(&req, &rem));
3446
            if (is_error(ret) && arg2) {
3447
                host_to_target_timespec(arg2, &rem);
3448
            }
3449
        }
3450
        break;
3451
    case TARGET_NR_query_module:
3452
        goto unimplemented;
3453
    case TARGET_NR_nfsservctl:
3454
        goto unimplemented;
3455
    case TARGET_NR_prctl:
3456
        switch (arg1)
3457
            {
3458
            case PR_GET_PDEATHSIG:
3459
                {
3460
                    int deathsig;
3461
                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
3462
                    if (!is_error(ret) && arg2)
3463
                        tput32(arg2, deathsig);
3464
                }
3465
                break;
3466
            default:
3467
                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
3468
                break;
3469
            }
3470
        break;
3471
#ifdef TARGET_NR_pread
3472
    case TARGET_NR_pread:
3473
        page_unprotect_range(arg2, arg3);
3474
        p = lock_user(arg2, arg3, 0);
3475
        ret = get_errno(pread(arg1, p, arg3, arg4));
3476
        unlock_user(p, arg2, ret);
3477
        break;
3478
    case TARGET_NR_pwrite:
3479
        p = lock_user(arg2, arg3, 1);
3480
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
3481
        unlock_user(p, arg2, 0);
3482
        break;
3483
#endif
3484
    case TARGET_NR_getcwd:
3485
        p = lock_user(arg1, arg2, 0);
3486
        ret = get_errno(sys_getcwd1(p, arg2));
3487
        unlock_user(p, arg1, ret);
3488
        break;
3489
    case TARGET_NR_capget:
3490
        goto unimplemented;
3491
    case TARGET_NR_capset:
3492
        goto unimplemented;
3493
    case TARGET_NR_sigaltstack:
3494
        goto unimplemented;
3495
    case TARGET_NR_sendfile:
3496
        goto unimplemented;
3497
#ifdef TARGET_NR_getpmsg
3498
    case TARGET_NR_getpmsg:
3499
        goto unimplemented;
3500
#endif
3501
#ifdef TARGET_NR_putpmsg
3502
    case TARGET_NR_putpmsg:
3503
        goto unimplemented;
3504
#endif
3505
#ifdef TARGET_NR_vfork
3506
    case TARGET_NR_vfork:
3507
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3508
        break;
3509
#endif
3510
#ifdef TARGET_NR_ugetrlimit
3511
    case TARGET_NR_ugetrlimit:
3512
    {
3513
        struct rlimit rlim;
3514
        ret = get_errno(getrlimit(arg1, &rlim));
3515
        if (!is_error(ret)) {
3516
            struct target_rlimit *target_rlim;
3517
            lock_user_struct(target_rlim, arg2, 0);
3518
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3519
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
3520
            unlock_user_struct(target_rlim, arg2, 1);
3521
        }
3522
        break;
3523
    }
3524
#endif
3525
#ifdef TARGET_NR_truncate64
3526
    case TARGET_NR_truncate64:
3527
        p = lock_user_string(arg1);
3528
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3529
        unlock_user(p, arg1, 0);
3530
        break;
3531
#endif
3532
#ifdef TARGET_NR_ftruncate64
3533
    case TARGET_NR_ftruncate64:
3534
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3535
        break;
3536
#endif
3537
#ifdef TARGET_NR_stat64
3538
    case TARGET_NR_stat64:
3539
        p = lock_user_string(arg1);
3540
        ret = get_errno(stat(path(p), &st));
3541
        unlock_user(p, arg1, 0);
3542
        goto do_stat64;
3543
#endif
3544
#ifdef TARGET_NR_lstat64
3545
    case TARGET_NR_lstat64:
3546
        p = lock_user_string(arg1);
3547
        ret = get_errno(lstat(path(p), &st));
3548
        unlock_user(p, arg1, 0);
3549
        goto do_stat64;
3550
#endif
3551
#ifdef TARGET_NR_fstat64
3552
    case TARGET_NR_fstat64:
3553
        {
3554
            ret = get_errno(fstat(arg1, &st));
3555
        do_stat64:
3556
            if (!is_error(ret)) {
3557
#ifdef TARGET_ARM
3558
                if (((CPUARMState *)cpu_env)->eabi) {
3559
                    struct target_eabi_stat64 *target_st;
3560
                    lock_user_struct(target_st, arg2, 1);
3561
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
3562
                    /* put_user is probably wrong.  */
3563
                    put_user(st.st_dev, &target_st->st_dev);
3564
                    put_user(st.st_ino, &target_st->st_ino);
3565
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3566
                    put_user(st.st_ino, &target_st->__st_ino);
3567
#endif
3568
                    put_user(st.st_mode, &target_st->st_mode);
3569
                    put_user(st.st_nlink, &target_st->st_nlink);
3570
                    put_user(st.st_uid, &target_st->st_uid);
3571
                    put_user(st.st_gid, &target_st->st_gid);
3572
                    put_user(st.st_rdev, &target_st->st_rdev);
3573
                    /* XXX: better use of kernel struct */
3574
                    put_user(st.st_size, &target_st->st_size);
3575
                    put_user(st.st_blksize, &target_st->st_blksize);
3576
                    put_user(st.st_blocks, &target_st->st_blocks);
3577
                    put_user(st.st_atime, &target_st->target_st_atime);
3578
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3579
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3580
                    unlock_user_struct(target_st, arg2, 0);
3581
                } else
3582
#endif
3583
                {
3584
                    struct target_stat64 *target_st;
3585
                    lock_user_struct(target_st, arg2, 1);
3586
                    memset(target_st, 0, sizeof(struct target_stat64));
3587
                    /* ??? put_user is probably wrong.  */
3588
                    put_user(st.st_dev, &target_st->st_dev);
3589
                    put_user(st.st_ino, &target_st->st_ino);
3590
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3591
                    put_user(st.st_ino, &target_st->__st_ino);
3592
#endif
3593
                    put_user(st.st_mode, &target_st->st_mode);
3594
                    put_user(st.st_nlink, &target_st->st_nlink);
3595
                    put_user(st.st_uid, &target_st->st_uid);
3596
                    put_user(st.st_gid, &target_st->st_gid);
3597
                    put_user(st.st_rdev, &target_st->st_rdev);
3598
                    /* XXX: better use of kernel struct */
3599
                    put_user(st.st_size, &target_st->st_size);
3600
                    put_user(st.st_blksize, &target_st->st_blksize);
3601
                    put_user(st.st_blocks, &target_st->st_blocks);
3602
                    put_user(st.st_atime, &target_st->target_st_atime);
3603
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3604
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3605
                    unlock_user_struct(target_st, arg2, 0);
3606
                }
3607
            }
3608
        }
3609
        break;
3610
#endif
3611
#ifdef USE_UID16
3612
    case TARGET_NR_lchown:
3613
        p = lock_user_string(arg1);
3614
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3615
        unlock_user(p, arg1, 0);
3616
        break;
3617
    case TARGET_NR_getuid:
3618
        ret = get_errno(high2lowuid(getuid()));
3619
        break;
3620
    case TARGET_NR_getgid:
3621
        ret = get_errno(high2lowgid(getgid()));
3622
        break;
3623
    case TARGET_NR_geteuid:
3624
        ret = get_errno(high2lowuid(geteuid()));
3625
        break;
3626
    case TARGET_NR_getegid:
3627
        ret = get_errno(high2lowgid(getegid()));
3628
        break;
3629
    case TARGET_NR_setreuid:
3630
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3631
        break;
3632
    case TARGET_NR_setregid:
3633
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3634
        break;
3635
    case TARGET_NR_getgroups:
3636
        {
3637
            int gidsetsize = arg1;
3638
            uint16_t *target_grouplist;
3639
            gid_t *grouplist;
3640
            int i;
3641

    
3642
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3643
            ret = get_errno(getgroups(gidsetsize, grouplist));
3644
            if (!is_error(ret)) {
3645
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3646
                for(i = 0;i < gidsetsize; i++)
3647
                    target_grouplist[i] = tswap16(grouplist[i]);
3648
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
3649
            }
3650
        }
3651
        break;
3652
    case TARGET_NR_setgroups:
3653
        {
3654
            int gidsetsize = arg1;
3655
            uint16_t *target_grouplist;
3656
            gid_t *grouplist;
3657
            int i;
3658

    
3659
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3660
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3661
            for(i = 0;i < gidsetsize; i++)
3662
                grouplist[i] = tswap16(target_grouplist[i]);
3663
            unlock_user(target_grouplist, arg2, 0);
3664
            ret = get_errno(setgroups(gidsetsize, grouplist));
3665
        }
3666
        break;
3667
    case TARGET_NR_fchown:
3668
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3669
        break;
3670
#ifdef TARGET_NR_setresuid
3671
    case TARGET_NR_setresuid:
3672
        ret = get_errno(setresuid(low2highuid(arg1), 
3673
                                  low2highuid(arg2), 
3674
                                  low2highuid(arg3)));
3675
        break;
3676
#endif
3677
#ifdef TARGET_NR_getresuid
3678
    case TARGET_NR_getresuid:
3679
        {
3680
            uid_t ruid, euid, suid;
3681
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3682
            if (!is_error(ret)) {
3683
                tput16(arg1, tswap16(high2lowuid(ruid)));
3684
                tput16(arg2, tswap16(high2lowuid(euid)));
3685
                tput16(arg3, tswap16(high2lowuid(suid)));
3686
            }
3687
        }
3688
        break;
3689
#endif
3690
#ifdef TARGET_NR_getresgid
3691
    case TARGET_NR_setresgid:
3692
        ret = get_errno(setresgid(low2highgid(arg1), 
3693
                                  low2highgid(arg2), 
3694
                                  low2highgid(arg3)));
3695
        break;
3696
#endif
3697
#ifdef TARGET_NR_getresgid
3698
    case TARGET_NR_getresgid:
3699
        {
3700
            gid_t rgid, egid, sgid;
3701
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3702
            if (!is_error(ret)) {
3703
                tput16(arg1, tswap16(high2lowgid(rgid)));
3704
                tput16(arg2, tswap16(high2lowgid(egid)));
3705
                tput16(arg3, tswap16(high2lowgid(sgid)));
3706
            }
3707
        }
3708
        break;
3709
#endif
3710
    case TARGET_NR_chown:
3711
        p = lock_user_string(arg1);
3712
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3713
        unlock_user(p, arg1, 0);
3714
        break;
3715
    case TARGET_NR_setuid:
3716
        ret = get_errno(setuid(low2highuid(arg1)));
3717
        break;
3718
    case TARGET_NR_setgid:
3719
        ret = get_errno(setgid(low2highgid(arg1)));
3720
        break;
3721
    case TARGET_NR_setfsuid:
3722
        ret = get_errno(setfsuid(arg1));
3723
        break;
3724
    case TARGET_NR_setfsgid:
3725
        ret = get_errno(setfsgid(arg1));
3726
        break;
3727
#endif /* USE_UID16 */
3728

    
3729
#ifdef TARGET_NR_lchown32
3730
    case TARGET_NR_lchown32:
3731
        p = lock_user_string(arg1);
3732
        ret = get_errno(lchown(p, arg2, arg3));
3733
        unlock_user(p, arg1, 0);
3734
        break;
3735
#endif
3736
#ifdef TARGET_NR_getuid32
3737
    case TARGET_NR_getuid32:
3738
        ret = get_errno(getuid());
3739
        break;
3740
#endif
3741
#ifdef TARGET_NR_getgid32
3742
    case TARGET_NR_getgid32:
3743
        ret = get_errno(getgid());
3744
        break;
3745
#endif
3746
#ifdef TARGET_NR_geteuid32
3747
    case TARGET_NR_geteuid32:
3748
        ret = get_errno(geteuid());
3749
        break;
3750
#endif
3751
#ifdef TARGET_NR_getegid32
3752
    case TARGET_NR_getegid32:
3753
        ret = get_errno(getegid());
3754
        break;
3755
#endif
3756
#ifdef TARGET_NR_setreuid32
3757
    case TARGET_NR_setreuid32:
3758
        ret = get_errno(setreuid(arg1, arg2));
3759
        break;
3760
#endif
3761
#ifdef TARGET_NR_setregid32
3762
    case TARGET_NR_setregid32:
3763
        ret = get_errno(setregid(arg1, arg2));
3764
        break;
3765
#endif
3766
#ifdef TARGET_NR_getgroups32
3767
    case TARGET_NR_getgroups32:
3768
        {
3769
            int gidsetsize = arg1;
3770
            uint32_t *target_grouplist;
3771
            gid_t *grouplist;
3772
            int i;
3773

    
3774
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3775
            ret = get_errno(getgroups(gidsetsize, grouplist));
3776
            if (!is_error(ret)) {
3777
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3778
                for(i = 0;i < gidsetsize; i++)
3779
                    target_grouplist[i] = tswap32(grouplist[i]);
3780
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
3781
            }
3782
        }
3783
        break;
3784
#endif
3785
#ifdef TARGET_NR_setgroups32
3786
    case TARGET_NR_setgroups32:
3787
        {
3788
            int gidsetsize = arg1;
3789
            uint32_t *target_grouplist;
3790
            gid_t *grouplist;
3791
            int i;
3792
            
3793
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3794
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3795
            for(i = 0;i < gidsetsize; i++)
3796
                grouplist[i] = tswap32(target_grouplist[i]);
3797
            unlock_user(target_grouplist, arg2, 0);
3798
            ret = get_errno(setgroups(gidsetsize, grouplist));
3799
        }
3800
        break;
3801
#endif
3802
#ifdef TARGET_NR_fchown32
3803
    case TARGET_NR_fchown32:
3804
        ret = get_errno(fchown(arg1, arg2, arg3));
3805
        break;
3806
#endif
3807
#ifdef TARGET_NR_setresuid32
3808
    case TARGET_NR_setresuid32:
3809
        ret = get_errno(setresuid(arg1, arg2, arg3));
3810
        break;
3811
#endif
3812
#ifdef TARGET_NR_getresuid32
3813
    case TARGET_NR_getresuid32:
3814
        {
3815
            uid_t ruid, euid, suid;
3816
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3817
            if (!is_error(ret)) {
3818
                tput32(arg1, tswap32(ruid));
3819
                tput32(arg2, tswap32(euid));
3820
                tput32(arg3, tswap32(suid));
3821
            }
3822
        }
3823
        break;
3824
#endif
3825
#ifdef TARGET_NR_setresgid32
3826
    case TARGET_NR_setresgid32:
3827
        ret = get_errno(setresgid(arg1, arg2, arg3));
3828
        break;
3829
#endif
3830
#ifdef TARGET_NR_getresgid32
3831
    case TARGET_NR_getresgid32:
3832
        {
3833
            gid_t rgid, egid, sgid;
3834
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3835
            if (!is_error(ret)) {
3836
                tput32(arg1, tswap32(rgid));
3837
                tput32(arg2, tswap32(egid));
3838
                tput32(arg3, tswap32(sgid));
3839
            }
3840
        }
3841
        break;
3842
#endif
3843
#ifdef TARGET_NR_chown32
3844
    case TARGET_NR_chown32:
3845
        p = lock_user_string(arg1);
3846
        ret = get_errno(chown(p, arg2, arg3));
3847
        unlock_user(p, arg1, 0);
3848
        break;
3849
#endif
3850
#ifdef TARGET_NR_setuid32
3851
    case TARGET_NR_setuid32:
3852
        ret = get_errno(setuid(arg1));
3853
        break;
3854
#endif
3855
#ifdef TARGET_NR_setgid32
3856
    case TARGET_NR_setgid32:
3857
        ret = get_errno(setgid(arg1));
3858
        break;
3859
#endif
3860
#ifdef TARGET_NR_setfsuid32
3861
    case TARGET_NR_setfsuid32:
3862
        ret = get_errno(setfsuid(arg1));
3863
        break;
3864
#endif
3865
#ifdef TARGET_NR_setfsgid32
3866
    case TARGET_NR_setfsgid32:
3867
        ret = get_errno(setfsgid(arg1));
3868
        break;
3869
#endif
3870

    
3871
    case TARGET_NR_pivot_root:
3872
        goto unimplemented;
3873
#ifdef TARGET_NR_mincore
3874
    case TARGET_NR_mincore:
3875
        goto unimplemented;
3876
#endif
3877
#ifdef TARGET_NR_madvise
3878
    case TARGET_NR_madvise:
3879
        /* A straight passthrough may not be safe because qemu sometimes
3880
           turns private flie-backed mappings into anonymous mappings.
3881
           This will break MADV_DONTNEED.
3882
           This is a hint, so ignoring and returning success is ok.  */
3883
        ret = get_errno(0);
3884
        break;
3885
#endif
3886
#if TARGET_LONG_BITS == 32
3887
    case TARGET_NR_fcntl64:
3888
    {
3889
        int cmd;
3890
        struct flock64 fl;
3891
        struct target_flock64 *target_fl;
3892
#ifdef TARGET_ARM
3893
        struct target_eabi_flock64 *target_efl;
3894
#endif
3895

    
3896
        switch(arg2){
3897
        case TARGET_F_GETLK64:
3898
            cmd = F_GETLK64;
3899
            break;
3900
        case TARGET_F_SETLK64:
3901
            cmd = F_SETLK64;
3902
            break;
3903
        case TARGET_F_SETLKW64:
3904
            cmd = F_SETLK64;
3905
            break;
3906
        default:
3907
            cmd = arg2;
3908
            break;
3909
        }
3910

    
3911
        switch(arg2) {
3912
        case TARGET_F_GETLK64:
3913
#ifdef TARGET_ARM
3914
            if (((CPUARMState *)cpu_env)->eabi) {
3915
                lock_user_struct(target_efl, arg3, 1);
3916
                fl.l_type = tswap16(target_efl->l_type);
3917
                fl.l_whence = tswap16(target_efl->l_whence);
3918
                fl.l_start = tswap64(target_efl->l_start);
3919
                fl.l_len = tswap64(target_efl->l_len);
3920
                fl.l_pid = tswapl(target_efl->l_pid);
3921
                unlock_user_struct(target_efl, arg3, 0);
3922
            } else
3923
#endif
3924
            {
3925
                lock_user_struct(target_fl, arg3, 1);
3926
                fl.l_type = tswap16(target_fl->l_type);
3927
                fl.l_whence = tswap16(target_fl->l_whence);
3928
                fl.l_start = tswap64(target_fl->l_start);
3929
                fl.l_len = tswap64(target_fl->l_len);
3930
                fl.l_pid = tswapl(target_fl->l_pid);
3931
                unlock_user_struct(target_fl, arg3, 0);
3932
            }
3933
            ret = get_errno(fcntl(arg1, cmd, &fl));
3934
            if (ret == 0) {
3935
#ifdef TARGET_ARM
3936
                if (((CPUARMState *)cpu_env)->eabi) {
3937
                    lock_user_struct(target_efl, arg3, 0);
3938
                    target_efl->l_type = tswap16(fl.l_type);
3939
                    target_efl->l_whence = tswap16(fl.l_whence);
3940
                    target_efl->l_start = tswap64(fl.l_start);
3941
                    target_efl->l_len = tswap64(fl.l_len);
3942
                    target_efl->l_pid = tswapl(fl.l_pid);
3943
                    unlock_user_struct(target_efl, arg3, 1);
3944
                } else
3945
#endif
3946
                {
3947
                    lock_user_struct(target_fl, arg3, 0);
3948
                    target_fl->l_type = tswap16(fl.l_type);
3949
                    target_fl->l_whence = tswap16(fl.l_whence);
3950
                    target_fl->l_start = tswap64(fl.l_start);
3951
                    target_fl->l_len = tswap64(fl.l_len);
3952
                    target_fl->l_pid = tswapl(fl.l_pid);
3953
                    unlock_user_struct(target_fl, arg3, 1);
3954
                }
3955
            }
3956
            break;
3957

    
3958
        case TARGET_F_SETLK64:
3959
        case TARGET_F_SETLKW64:
3960
#ifdef TARGET_ARM
3961
            if (((CPUARMState *)cpu_env)->eabi) {
3962
                lock_user_struct(target_efl, arg3, 1);
3963
                fl.l_type = tswap16(target_efl->l_type);
3964
                fl.l_whence = tswap16(target_efl->l_whence);
3965
                fl.l_start = tswap64(target_efl->l_start);
3966
                fl.l_len = tswap64(target_efl->l_len);
3967
                fl.l_pid = tswapl(target_efl->l_pid);
3968
                unlock_user_struct(target_efl, arg3, 0);
3969
            } else
3970
#endif
3971
            {
3972
                lock_user_struct(target_fl, arg3, 1);
3973
                fl.l_type = tswap16(target_fl->l_type);
3974
                fl.l_whence = tswap16(target_fl->l_whence);
3975
                fl.l_start = tswap64(target_fl->l_start);
3976
                fl.l_len = tswap64(target_fl->l_len);
3977
                fl.l_pid = tswapl(target_fl->l_pid);
3978
                unlock_user_struct(target_fl, arg3, 0);
3979
            }
3980
            ret = get_errno(fcntl(arg1, cmd, &fl));
3981
            break;
3982
        default:
3983
            ret = get_errno(do_fcntl(arg1, cmd, arg3));
3984
            break;
3985
        }
3986
        break;
3987
    }
3988
#endif
3989
#ifdef TARGET_NR_cacheflush
3990
    case TARGET_NR_cacheflush:
3991
        /* self-modifying code is handled automatically, so nothing needed */
3992
        ret = 0;
3993
        break;
3994
#endif
3995
#ifdef TARGET_NR_security
3996
    case TARGET_NR_security:
3997
        goto unimplemented;
3998
#endif
3999
#ifdef TARGET_NR_getpagesize
4000
    case TARGET_NR_getpagesize:
4001
        ret = TARGET_PAGE_SIZE;
4002
        break;
4003
#endif
4004
    case TARGET_NR_gettid:
4005
        ret = get_errno(gettid());
4006
        break;
4007
    case TARGET_NR_readahead:
4008
        goto unimplemented;
4009
#ifdef TARGET_NR_setxattr
4010
    case TARGET_NR_setxattr:
4011
    case TARGET_NR_lsetxattr:
4012
    case TARGET_NR_fsetxattr:
4013
    case TARGET_NR_getxattr:
4014
    case TARGET_NR_lgetxattr:
4015
    case TARGET_NR_fgetxattr:
4016
    case TARGET_NR_listxattr:
4017
    case TARGET_NR_llistxattr:
4018
    case TARGET_NR_flistxattr:
4019
    case TARGET_NR_removexattr:
4020
    case TARGET_NR_lremovexattr:
4021
    case TARGET_NR_fremovexattr:
4022
        goto unimplemented_nowarn;
4023
#endif
4024
#ifdef TARGET_NR_set_thread_area
4025
    case TARGET_NR_set_thread_area:
4026
#ifdef TARGET_MIPS
4027
      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
4028
      ret = 0;
4029
      break;
4030
#else
4031
      goto unimplemented_nowarn;
4032
#endif
4033
#endif
4034
#ifdef TARGET_NR_get_thread_area
4035
    case TARGET_NR_get_thread_area:
4036
        goto unimplemented_nowarn;
4037
#endif
4038
#ifdef TARGET_NR_getdomainname
4039
    case TARGET_NR_getdomainname:
4040
        goto unimplemented_nowarn;
4041
#endif
4042

    
4043
#ifdef TARGET_NR_clock_gettime
4044
    case TARGET_NR_clock_gettime:
4045
    {
4046
        struct timespec ts;
4047
        ret = get_errno(clock_gettime(arg1, &ts));
4048
        if (!is_error(ret)) {
4049
            host_to_target_timespec(arg2, &ts);
4050
        }
4051
        break;
4052
    }
4053
#endif
4054
#ifdef TARGET_NR_clock_getres
4055
    case TARGET_NR_clock_getres:
4056
    {
4057
        struct timespec ts;
4058
        ret = get_errno(clock_getres(arg1, &ts));
4059
        if (!is_error(ret)) {
4060
            host_to_target_timespec(arg2, &ts);
4061
        }
4062
        break;
4063
    }
4064
#endif
4065

    
4066
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
4067
    case TARGET_NR_set_tid_address:
4068
      ret = get_errno(set_tid_address((int *) arg1));
4069
      break;
4070
#endif
4071

    
4072
    default:
4073
    unimplemented:
4074
        gemu_log("qemu: Unsupported syscall: %d\n", num);
4075
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname)
4076
    unimplemented_nowarn:
4077
#endif
4078
        ret = -ENOSYS;
4079
        break;
4080
    }
4081
 fail:
4082
#ifdef DEBUG
4083
    gemu_log(" = %ld\n", ret);
4084
#endif
4085
    return ret;
4086
}
4087